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

0-60mph

Top speed

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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Sticky cornering g 1.1 g vs 1.05 g Around 5% sticky cornering g
Bigger engine 7,000 cc vs 6,300 cc More than 10% bigger engine
Default view of SSC Ultimate Aero TT

Reasons to consider the
SSC Ultimate Aero TT

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Much more powerful engine 1,167 HP @ 6,875 RPM vs 740 HP @ 6,300 RPM Around 60% stronger engine
Much more torque 1,097 ft-lb @ 6,150 RPM vs 702 ft-lb @ 4,800 RPM More than 55% stronger engine from a stand-still; more acceleration power
Faster to 60mph 2.78 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 254 mph vs 247 mph 7 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 TT 
Brand Saleen SSC
Price 555,000 585,000
Year 2005 2007

power & handling

Power-to-weight ratio 3.72 lb/hp 2.36 lb/hp
Maximum hp 740 HP @ 6,300 RPM 1,167 HP @ 6,875 RPM
Maximum torque 702 ft-lb @ 4,800 RPM 1,097 ft-lb @ 6,150 RPM
Max RPM 6,500 RPM 7,200 RPM
Engine placement Mid Mid
Steering system Rack and pinion Rack and pinion

engine

Displacement 7,000 cc 6,300 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
Valves per cylinder 2 2

road tests

S7 Twin Turbo  vs
Ultimate Aero TT 
Top speed 247 mph 254 mph
1/4 mile 10.5 s 9.9 s
0-60mph 3.4 s 2.78 s
Lateral acceleration 1.1 g 1.05 g

transmission

Drivetrain RWD w/Limited Slip Differential Rear wheel drive
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/? 229
Rear wheels 508/? 305 508/? 318

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
Saleen S7 Twin Turbo
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SSC Ultimate Aero TT
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