BMW Australia has boosted its X3 line-up, substituting the old naturally aspirated six-cylinder petrol engine in the BMW X3 xDrive28i for a turbocharged 2.0-litre four-cylinder unit.
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As we reported back in February, the four-cylinder replaces the previous 3.0-litre inline six. The new engine produces 180kW of power and 350Nm of torque, down 10kW but up 40Nm. The new motor not only allows for a faster 0-100km time of 6.7 seconds, but also improves fuel consumption to 7.5 litres per 100km - down from 9.0L/100km - with the aid of BMW's stop/start function. Emissions have also been reduced to 175 grams of CO2 per 100km, down 35g/100km.

Along with the addition of stop/start, the X3 xDrive28i now receives Business Navigation as standard – on par with the X3 xDrive30d. BMW's Driving Experience Control with Eco Pro mode is now also included across the entire X3 range as is the eight-speed automatic transmission.

While the previous BMW X3 xDrive28i was priced from $71,900, the new four-cylinder's extras see the flagship petrol variant's price increase $1000 to $72,900.

2012 BMW X3 manufacturer's list prices:

X3 xDrive20i 135kW/270Nm 2.0-litre four-cylinder turbo - $59,500
X3 xDrive20d 135kW/380Nm 2.0-litre four-cylinder turbo-diesel - $62,500
X3 xDrive28i 180kW/350Nm 2.0-litre four-cylinder turbo - $72,900
X3 xDrive30d 190kW/560Nm 3.0-litre six-cylinder turbo-diesel - $75,900

Click here for CarAdvice's BMW X3 Review.