2004 Saleen S7 Overview

Its 575 horsepower output is up from the previous version at 550, while torque has increased to 568 lb-ft at 4700 rpm, up 44 lb-ft. Power is fed through a straight-cut

The S7's engine has the title of world's most powerful naturally-aspirated production V8. (Photo: Saleen)

6-speed manual gearbox. While it pales in comparison to the 806-hp Koenigsegg CCR, the S7 still has the title of world's most powerful naturally-aspirated production V8 motor.

All the power is forced through a longitudinally mounted 6-speed all synchromesh transaxle with a final drive ratio of 3.22. A limited slip differential keeps the rear wheels in check under full acceleration, while a metallic 5.5-inch diameter, 4-plate, hydraulically actuated clutch is the interface between man and machine.

So what difference does the extra power make for the S7? Well, it will certainly be hard to tell, but its very impressive zero to 100 km/h sprint takes just

Factory test figures peg the S7 as the world's quickest car. (Photo: Saleen)

2.9 seconds, and 160 km/h arrives in a mere 6.5 seconds. Top speed is estimated at 320 km/h (200 mph), or so.

That speed is allowable due to advanced wind tunnel developed aerodynamics, such as integrated split-channel air flow throughout car, full underside aerodynamics, advanced design front tray and side skirts, plus an integrated full body wing.

The factory figures make the S7 the world's quickest car, beating out the McLaren F1, Ferrari Enzo and Pagani Zonda by a healthy margin, but it will have to be made official and tested by a trusted third party before such a claim can be confirmed.