Ultima GTR Recognized on October 7, 2008 by the World Records Academy as the world's fastest street-legal car.
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Recently Ultima have focused their marketing efforts on record-breaking activities using a model equipped with a 640 bhp (477 kW) American Speed engine, which is called the Ultima GTR640, and subsequently, a 720 bhp (537 kW) engine which is called the GTR720. As a result, they have established the following official, independently verified records[3] for a production car equipped with road tires and exhaust:
Fastest 0-60 mph (97 km/h) time: 2.6 seconds[3]
Fastest 0-100 mph (160 km/h) time: 5.3 seconds[3]
Fastest 30 mph (48 km/h)-70 mph (110 km/h) time: 1.8 seconds[3]
Fastest 100 mph (160 km/h)- 0 mph time: 3.6 seconds[3]
Fastest 0-100 mph (160 km/h)- 0 mph time: 9.4 seconds[3]
Best performance on a skidpad: 1.176g lateral grip in a 200 ft (60 m) circle.
Fastest road car over the 1/4 mile: 9.9 seconds @ 143 mph (230 km/h)
Due to its curb weight of 990 kg (2,183 lb)[4], the power-to-weight ratio for the GTR720 is 727 hp (542 kW) per tonne, which is a better ratio than the Bugatti Veyron, Enzo Ferrari, Ascari A10, Koenigsegg CCX or CCGT (but less than the Koenigsegg CCXR), it's also lesser to the Caparo T1. However, the Ultima chassis is rated for engines up to 1,000 bhp (700 kW) and some of Ultima's customers have fitted engines producing 1,000 bhp (700 kW) or more[5], for a power-to-weight ratio of over 1,000 hp (746 kW) per ton