Its unveiling also marks the first day of sales in both Australia and New Zealand carrying a price tag of $155,500 - with all 90 cars being built in 2008 already accounted for.
The W427 namesake is a tribute to the first HSV ever produced - the Group A SS VL Commodore which has been affectionately named the 'Walkinshaw' in reference to HSV founder Tom Walkinshaw.
The hand-built 7.0-litre LS7 V8 powerplant is found in only two cars around the world, the Corvette Z06 and now the HSV W427.
“We are proud to have produced a vehicle of these proportions and are confident the public response to the W427 proves there is a strong future for luxury and performance vehicles in this country.” HSV’s Managing Director Scott Grant.
The W427 has been fitted with an all new clutch, gearbox, differential and exhaust to cope with the incredible 375kW (or 500hp in the old money) and 650Nm on tap.
“We have spent two years developing and testing this car and are really proud of the end result,” said HSV’s Engineering Manager, Joel Stoddart. “It’s the car HSV has always wanted to build and the VE platform gave us the confidence to push the boundaries."
The car also sports a new six piston front braking system as well as ABS and Electronic Stability Control and carries HSV's standard three year, 100,000km warranty.
The design brief for the W427 was to create a unique face for the HSV range and embody a new halo car for the brand which would signal immense capability, authority and power.
“We believe we have achieved this with a range of design features including the imposing front face – which emphasises the need for cooling air for the seven litre engine, to the effective and functional three piece design rear lip spoiler, made of carbon fibre to keep weight to a minimum,” Julian Quincey HSV design team.
The unique wheels and W427 logo are the work of Adam Dean Smith, a former Wheels Young Designer of the Year.
HSV has also confirmed earlier reports that no more than 427 examples of the W427 will ever be built - possibly less if there is an unlikely lack of demand.
W427 buyers will also be treated to a special customer program designed to offer an insight into the craftsmanship that goes into the building of each and every vehicle.
This comprises a VIP tour of Holden Special Vehicles Clayton based production facility, to observe the W427 build process from a dedicated viewing station.
Customers will also receive a personally signed letter from Tom Walkinshaw along with a unique vehicle build certificate while a Customer Access Portal, containing build information, servicing details and other information on the history of their car will also form part of the ownership experience.
As one of Australia's most expensive production cars, the W427 also receives the extra protection of an advanced version of the world famous DataDots DNA anti-theft technology which incorporates the latest encrypting ‘nano’ technology to authenticate genuine HSV components as well as the core vehicle.
In case the price tag is just slightly out of your range, we have left some of the more appropriate images in the gallery at full size (2.0Mb) to use as wallpaper (next page).
Full W427 specifications can be found here.