Acabion intends to offer the GTBO in five variants, beginning with the GTBO 36 which tops out at a ludicrous 340 mph (550 km/h), however it is electronically limited to a \'sensible\' 280 mph (450 km/h). That\'s pretty tame when you compare it to the top spec GTBO 70 which is capable of over 372 mph (600 km/h), supposedly. To complement the amazing performance claims the Acabion GTBO also has outstanding fuel economy, at 60 mph with a 90 litre fuel tank the GTBO can cover 1490 miles (2400 km) before refueling. The Acabion aims to achieve these goals by adhering to two basic principles, aerodynamic efficiency and lightweight construction with immense power. The base spec GTBO comes in at just 359 kg (790 lbs) but develops 360 horsepower, that\'s over 1000 horsepower per tonne, the Mclaren F1 had 550 horsepower per tonne. The Acabion GTBO 70 has over 2000 horsepower per tonne! For low speed maneuvering power is provided by an electrical motor. Despite its diminutive size and light weight the GTBO has innovative passenger safety equipment borrowed from F1 race cars, although at 600+ km/h a head on collision is probably going to hurt in the morning. Inside the Acabion GTBO the driver and passenger, seated in tandem, are offered all the usual refinements found in conventional automobiles, although on ordering customers can kit their GTBO out in there preferred materials. Entertainment is handled by an onboard computer system with digital storage for portable media devices. In addition, all Acabion GTBO\'s are compatible with a conceptual future of fully automated traffic and vehicle control.