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Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review

Model Tested: Tesla Roadster Sport 2.5, electric vehicle. $206,188 manufacturer’s list price, $241,938 as tested.

The sky is blue, black is black, white is white and DC is the reigning commercial form of electricity. These were all things that were accepted as fact in the late 1800s.  It wasn’t until the ‘War of Currents’ erupted soon after that AC electricity became a viable and now mainstream method of transmitting electricity.

One of the main men behind the AC electricity discovery was Croatian-born Nikola Tesla.

Fast forward 200 years and you will find the same thing is now happening in the automotive history. Electric cars are becoming seriously viable forms of mass produced transport, with Silicon Valley-based Tesla leading the charge on the sports car front (pardon the pun).

Paying homage to the creator of AC electricity, Tesla Motors was formed in 2003. Prototypes of the Tesla Roadster began hitting the road in 2006, with the car featuring in Time Magazine’s ‘Best Inventions – 2006′, in the transportation category.

Since then, 1500 Tesla Roadsters have been delivered in more than 30 countries.

Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review

2009 saw the introduction of the even faster Tesla Roadster Sport, shaving the 0-100km/h time down from 3.9 seconds to a staggering 3.7 seconds.

The rich history behind this car and the sheer acceleration numbers quoted by Tesla Motors meant I had to get behind the wheel to have a shot.

Due to the limited number of vehicles in Australia, I could only secure a day behind the wheel of the Tesla Roadster Sport, but had the chance to sample stop/start city driving, some highway driving and a spirited run through one of our test routes, including a 0-100km/h dash to test whether the car is as fast as the manufacturer claims.

From the outside, it’s not hard to see the striking similarities between the Tesla Roadster Sport and its Lotus Elise donor car. It’s longer and slightly wider to accommodate the battery and its ‘electric brain’ – a fairly large Printed Circuit Board (PCB) with the manufacturer’s patented technology.

The retractable roof stores nicely in the boot, leaving driver and passenger alike with a great Targa-style wind-in-hair feeling. During testing, we were able to fit the charging cables, a sizeable camera bag, the car’s roof, a large bag with cleaning gear and other odds and ends. Cargo capacity is a respectable 170 litres (in comparison with a Porsche 911 Turbo Cabriolet’s 107 litres or a Ferrari California’s 340 litres).

Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review

Getting in and out of the Roadster Sport requires the same finesse as its Lotus Elise sibling. Bum first, legs second is the best approach, unless you’re wearing a skirt, in which case it’s a fairly undignified approach either way you try it.

The seating position is very low to the ground, with exceptional visibility out the front and sides. Rear visibility is aided by a reversing camera, making getting out of city parks a breeze.

With no power steering, the Roadster Sport can be a bit of a handful in tight parks. It’s not hard to become accustomed to though. The lack of power steering has the upside of giving unparalleled communication with the road. Every bump and slither is felt through the wheel, mimicking a go-carting experience, except on a ballistic level.

Starting the Roadster Sport is as easy as turning the key and waiting for the audible beep. From there, it drives just like any other car. The single speed transmission can turn the electric motor at up to 14,000rpm, giving the Roadster Sport unrivalled responsiveness, especially considering that maximum torque is available from 1rpm.

In the city, the heavy-ish brakes take a bit of getting used to. Once familiarised with the brakes though, the only thing worth keeping an eye on is trucks and people who spend more time looking at the car than they do on the road.

An onboard computer displays estimated kilometre range, in addition to power usage over a set period, along with graphs and other useful information. The system also allows the driver to download the information for later use.

Tesla Roadster Sport 2.5 Review
Tesla Roadster Sport 2.5 Review

One of the best things about the Roadster Sport and electric cars in general is that the range not only depends on how you drive, but how often you brake, or in the case of electric vehicles, decelerate.

Instead of using the brakes to slow down at a set of traffic lights, or for a corner, you can simply ease off the throttle and vary the level of ‘engine braking’ from light to very heavy. Each increment recharges the battery to an exponential degree. The only conceivable downside to this form of slowing is other drivers. It’s hard for other drivers to judge when the car is slowing down without using the brakes, as the brake lights don’t activate. It’s simply a case of being sensible and aware of your surroundings.

The test loop included a twisty hill climb. The acceleration out of corners and in a straight line is simply staggering. It’s instantaneous torque that feels absolutely unrelenting. The continuous surge of torque doesn’t let up until you reach the next corner, where you balance between braking and ‘engine braking’ to get the most out of the car.

Steering feel is quite simply unique, as is brake pedal feel. There is lots of feedback through the steering and the chassis, leaving the driver feeling like they are connected with the car and involved with the whole package.

It feels significantly heavier than its Lotus Elise donor car (weighing around 1300kg), but still feels planted and secure. Body roll is predominantly non-existent, likewise with brake fade.

Unlike the almost erotic exhaust and engine note you would receive from a Porsche 911 Turbo, the Roadster Sport makes do with an increasing pitch whine that is addictive and entertaining. It sounds like a Melbourne tram doing hot laps of Albert Park.

It’s hard to escape the constant attention this car attracts wherever it goes. It didn’t take long to become used to having our conversations interrupted by interested onlookers in traffic.

Priced from $206,188, the Tesla Roadster Sport may seem pricey in isolation. But, once you compare it to the likes of the Porsche 911 Turbo Cabriolet at $390,100, or the Ferrari California at $459,650, or even the Audi R8 V10 Spyder at $392,000, it starts making a heck of a lot more sense.

The electric motor produces 215kW between 4400-6000rpm and 400Nm from 0-5100rpm. On test, the Tesla Roadster Sport consumed around 220Wh/km. It takes around 20 hours to charge the Roadster Sport from a regular 16A circuit. Other chargers, including a 35A and 70A quick charge are available and significantly reduce charging time.

Servicing occurs once every 12 months and will cost no more than $1500 according to Tesla Motors. Additionally, new firmware for the ‘electric brain’ can be downloaded to the car remotely without the need to visit the dealership.

If sums and the logic behind cars like this bore you, flick through the next few paragraphs.

When looking at car electric cars, a common factor used in calculating the efficiency of charging the car is called well-to-wheel. The well-to-wheel calculations take into account the production source of the electricity and the method it is distributed to households from the power station.

If we take Victoria for example, the July 2010 National Greenhouse Factors study concluded that Victoria’s emission factor is 1.23kg of CO2 per kWh, assuming the source of electricity is 100 percent coal. If you assume the Tesla Roadster Sport consumes around 220Wh/km, or 0.22kWh/km, it’s possible to deduce the carbon emissions of charging and using the Tesla Roadster Sport.

After crunching the numbers, a figure of 0.2706kg/km is produced. In comparable terms, the figure can further be reduced to 270.6g/km. That figure is 0.6g/km more than a Porsche 911 Turbo Cabriolet.

If your home receives 50 percent natural energy (by virtue of wind or solar), the carbon emissions drop to 135.3g/km. The figure becomes 0g/km if you choose to receive 100 percent natural energy, or produce your own energy at home courtesy of solar or wind power.

If your home receives 100 percent coal sourced energy, it costs around $7.56 to charge the Tesla Roadster Sport from flat. Taking the same Porsche 911 Turbo Cabriolet’s average fuel consumption figure of 11.3L/100km (which would no doubt double if driven hard), it’s a cost saving of some $56 per 360km (assuming a petrol price of $1.60/L).

Tesla claims the Tesla Roadster Sport’s range is around 390km. During testing, we were able to complete a road test loop with fairly hard driving and return back to the city (around 120km in total) and still have around 230km of range left. That is mainly thanks to the energy regeneration that occurs courtesy of traffic lights and descending stretches of road.

Those figures are very hard to argue with and give the Tesla Roadster Sport a very compelling argument to fight with. Now back to regular programming.

The only thing I can possibly liken the Tesla Roadster Sport to is a rollercoaster ride that has malfunctioned and become stuck at full speed. It’s scary, entertaining and staggeringly fast all at the same time. For a tech-freak like myself, it’s the ultimate sports… no, scratch that – supercar.

The technology behind this car is so unique and it has been used to create the ultimate green machine. I simply can’t wait to see what the future of Tesla Motors brings.


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  • mvyrmnd

    Has anyone else noticed that the indicator stalks are borrowed from an old Vectra?

    I’m glad you pointed out that the emissions are actually terrible if not using renewable energy. Until Australia stops burning brown coal for power, electric cars simply aren’t the answer here.

    • SteveH

      As a Roadster owner with 20,000 miles logged a few comments:
      – First, excellent review Paul.
      – The CO2 numbers quoted need to factor Well-to-Wheels for both the Roadster and the Porsche. (see the responses by Michael and Paul and even better Darell at EVnut.com has posted many references).
      – Range Anxiety only lasts until you have taken a couple of long distance trips and you realize that the electricity is available in more places than you thought (I’ve charged at many hotels) and the car accurately reports its state of charge.
      – At least in US, the brake lights do come on when strong regen is used
      - Myself and many roadster owners have Solar Panels proving that fun vehicle transportation with 0 emissions is possible – *without* sending money to middle east.
      My license plate frame:
      Oil Addict NOT!
      I’m TRIP’n on Sunlight

      – Finally, you do have to budget a little more time when you drive a TESLA to answer all the questions. (Yes – there is no gas, yep – over 200 mile range, No – I have never run out of “juice”, Yes – it is a blast to drive!)

  • Steve

    Nice car & tech, ironically will be owned by ppl who can afford our high petrol prices.

    • BarryHamburger

      Yep, saving $56 per 360km is NOTHING for the people who can afford this, especially given the low kms these cars see over their lifetime.

  • Henry

    Kool Car i like it i wonder if it will get sales ???

  • Henry F

    I saw this car at Collins Place near where I work – looks pretty good and super-quiet.

    Btw, I thought Tesla was a Serb?

    • John

      I visited the Nikola Tesla Museum in Belgrade last year (I highly recommend). It stated that he was a proud Serb (and he is even on their money) however, the village where he was born now lies within Croatian borders.

      • Aleks

        I don’t know why this articles refer to him as born in Croatia, because it is quite misleading. First of all, it wasn’t Croatia back then, it was land that belonged to the Austrian Empire. Tesla could not have been more Serbian, his father was a priest in the Serbian orthodox church and his mother was the daughter of a priest from the same church. Instead of saying that he was a Croatian-born inventor, why not just say the Serbian inventory. I wonder if the author of this article “Paul Maric” might be or have Croatian relatives, as many Croatians usually try to claim Tesla as their own.

  • Shak

    if this is their idea of a Supercar, i cant wait for what they think a Family Sedan will be!

  • Bob Wallace

    Sounds like Tesla needs to tweak the software and use rate of deceleration to trigger brake lights rather than brake pedal operation.

    Shak – the first Tesla family car will be the Model S, now being readied for the market. It will be a bit upscale, but much less expensive than the Roadster.

    Look for a more affordable EV from Tesla to follow.

  • Octavian

    What a good review, some shots of the PCB would have been nice though. If people use at least half renewable energy for recharging then the extra emission caused by the mining and production of the batteries would soon be offset.

  • Des

    “Servicing occurs once every 12 months and will cost no more than $1500 according to Tesla Motors”
    What the hell is there to service on an electric car? And no more than $1500??? Are they serious?

    • http://Subaru Sumodog

      Electric motors and related gear also need servicing .
      Coolant that cools li battery pack is replaced. Conventional wear and tear parts (brakes , tyres , suspension) get inspected and replaced.

      • JEKYL & HYDE

        i’ll agree…if you take one nought off.the one positive thing out of an electric car would be very little in the way of service costs,not 3-5 service bills at once..

      • Phil

        What electric motors need servicing and what particular component needs servicing? None of the electric motors in any of my household appliances have ever needed servicing.

        The motors on electric trains do not get serviced.

        Conventional wear on brakes, tyres, suspension – thats not included in the price of a normal car service and if they do get done at a service, they are charged as

  • AndrewF

    But ‘How far does she go, mister?’ That’s the main thing I wanted to learn from your actual experience, instead of manufacturer’s claims… Sadly you managed to omit that one piece of information that is arguably the most important when reviewing any electric vehicle!

    • http://www.caradvice.com.au Paul Maric

      Sorry about the omission. It was included originally, but it appears I accidentally deleted the paragraph when moving one of the photos.

      It’s now included in the article, but I’ve pasted it below so you don’t have to re-read it to find it:

      “Tesla Claims the Tesla Roadster Sport’s range is around 380km. During testing, we were able to complete a road test loop with fairly hard driving and return back to the city (around 120km in total) and still have around 230km of range left. That is mainly thanks to the energy regeneration that occurs courtesy of traffic lights and descending stretches of road.”

  • Jacob Martyn

    This thing has a HUGE battery which they could have fitted to Vans, Taxis, Minibuses and save oil.

  • Mark Melocco

    In US spec Roadsters, the brake light is triggered by a set level of regen, even befor the driver touches the brake pedal. If the Aus spec roadster doesn’t do this then you will have to blame Australian Design Rules.
    I would be interested to know what the actual situation is as I am considering a model S.

    • http://www.caradvice.com.au Paul Maric

      According to the local Tesla representative, the Australian Design Rules have no requirement for brake lights unless the driver is actually using the brake pedal.

      In my opinion, this is fairly nonsense when you consider a lot of drivers will enginge brake to some degree (even if they’re not driving an electric vehicle) and there is no indication to the following driver that the vehicle is slowing at any rate of speed.

  • smolkowicz

    not quiet digging this

  • http://electric-vehicles-cars-bikes.blogspot.com/ Paul

    COME ON GUYS: If you’re going to dredge up this “well-to-wheel” BS then you MUST compare like with like. It’s simply Ridiculous to state a Porsche 911 turbo puts out only 0.6g/km when you haven’t included a single up-stream emission. Refined petroleum doesn’t just spurt out of the ground. The DoE states that Petroleum refining is the most energy-intensive manufacturing industry in the United States and accounts for about 7.5% of total U.S. energy consumption. Try factoring that into your CO2/km!

  • http://michaelthwaite.me Michael Thwaite

    Your numbers are off, you’ve not factored in the CO2 impact of producing the gasoline. It takes more than a gallon of gas to make a gallon of gasoline.

    The 911′s true output is closer to 1.3g/km against the roadsters 0.7g/km or the tailpipe output of the 911 is 0.6g/km versus the tailpipe of the roadster at zero. BTW, I know which I’d prefer in my neighborhood.

    Otherwise, an enjoyable read but do please update those numbers.

    • http://michaelthwaite.me Michael Thwaite

      Hang on! Now my numbers are off! I’m getting too used to US numbers of tons of CO2 per Mega-watt.

      Net-net, the roadster should be in the 50-90gCO2/Km with the 911 around the 600′s all in.

      Feel free to send me over your calculations, I’ll send you back the reference materials.

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