Back in May 2007, we brought you news of the Weber Sportscars 400km/h supercar concept. The odd-looking beast was an intriguing mix of carbon fiber, aluminum and horsepower - with statistics so impressive you could almost forgive the bizarre appearance. Now Weber has updated their challenger for the world's top-speed crown with even more power and speed, and new name - the Faster One, or F1.

The Swiss firm claims the F1 is capable of 420km/h (260.98mph) when unleashed under the proper circumstances. It gets there under power from a LS7 snatched out of a Corvette Z06 and then sandwiched between a pair of superchargers that drive output beyond 660kW (900hp). Strap that powerhouse to a 1,100kg (2,420lb) frame and the result is a power-to-weight ratio of just 1.67kg/kW (2.68lb/hp).

The rocket-like power gives similar acceleration - Weber claims 0-100km/h (62mph) takes just 2.5 seconds, while 200km/h (124mph) comes in 6.6 seconds, and 300km/h (186mph) takes just 16.2 seconds - from a standing start.

Inside the cockpit is a dizzying array of controls fit for any race car, all suitably unlabeled. Rest assured the manual for the car will look something like most nations' tax codes in terms of volume and complexity.

All-wheel drive, dynamic power distribution and electronically controlled differentials help the driver apply the massive potential of the Weber F1. The exact 50:50 weight distribution and exceptionally low center of gravity also aid handling, according to Weber. Massive 12-piston calipers grab 380mm brake discs to stop the car from 100km/h in 30m (98ft).

Comparison to the eponymous F1 cars of Formula 1 is apt, despite the huge differences in size, equipment and appearance. The Weber F1 is skinned entirely in carbon fiber, possesses aerodynamic surfaces front and rear that create tremendous downforce, and, like its motorsports counterparts, is completely unconcerned with style. Function dominates form completely in the Weber F1, which gives it an odd sort of beauty of its own.

Those wishing to own one will have to figure out a way to secure US$1.57 million at current exchange rates.