Road Tests Real world tests of S7 Twin Turbo vs Ultimate Aero

0-60mph

Top speed

S7 Twin Turbo
247 mph
Ultimate Aero
256 mph

1/4 mile

Differences What are the advantages of each

Front view of Saleen S7 Twin Turbo

Reasons to consider the
Saleen S7 Twin Turbo

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Bigger engine 7,000 cc vs 6,345 cc More than 10% bigger engine
Side view of SSC Ultimate Aero

Reasons to consider the
SSC Ultimate Aero

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Much more powerful engine 1,287 HP @ 6,075 RPM vs 740 HP @ 6,300 RPM Around 75% stronger engine
Much more torque 1,113 ft-lb @ 6,150 RPM vs 702 ft-lb @ 4,800 RPM Around 60% stronger engine from a stand-still; more acceleration power
More expensive sticker price $740k vs $555k Around 35% more expensive harder to own
Faster to 60mph 2.8 s vs 3.4 s Around 20% faster to 60mph
Faster in the quarter mile 9.9 s vs 10.5 s More than 5% faster at the drag strip
Faster top speed 256 mph vs 247 mph 9 more mph; leaves lesser cars in the dust on the straights
Higher redline 7,200 RPM vs 6,500 RPM More than 10% more revs

Specifications Full list of technical specs

general

S7 Twin Turbo  vs
Ultimate Aero 
Brand Saleen SSC
Price 555,000 740,000
Year 2005 2009

power & handling

Power-to-weight ratio 3.72 lb/hp 2.14 lb/hp
Maximum hp 740 HP @ 6,300 RPM 1,287 HP @ 6,075 RPM
Maximum torque 702 ft-lb @ 4,800 RPM 1,113 ft-lb @ 6,150 RPM
Max RPM 6,500 RPM 7,200 RPM
Engine placement Mid Rear
Steering system Rack and pinion Rack and pinion

engine

Displacement 7,000 cc 6,345 cc
Cylinders V8 V8
Fuels
Gas
Compression ratio 10.8:1 8.97:1
Bore/stroke 4.12 in / 4 in 4.13 in / 3.62 in

physical dimensions

Curb weight 2,750 lb 2,750 lb
Width 78.3 in 82.7 in
Height 41 in 43 in
Length 188 in 176.2 in
Wheelbase 106.3 in 105.2 in

road tests

S7 Twin Turbo  vs
Ultimate Aero 
Top speed 247 mph 256 mph
1/4 mile 10.5 s 9.9 s
0-60mph 3.4 s 2.8 s

transmission

Drivetrain RWD w/Limited Slip Differential RWD
Shift system Manual Manual
Gearing Traditional Traditional
# of gears 6 6
Axle ratio 3.7:1 3.44:1

suspension, wheels & brakes

Front brakes Brembo Disc Disc
Rear brakes Brembo Disc Disc
Front wheels 483/? 241 483/? 241
Rear wheels 508/? 305 508/? 330
Saleen S7 Twin Turbo
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SSC Ultimate Aero
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