Differences What are the advantages of each

Car-autoblog view of Porsche 911 GT2 RS

Reasons to consider the
Porsche 911 GT2 RS

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TwinRev is not aware of any important advantages of the Porsche 911 GT2 RS vs the Hennessey Venom GT2.

Side view of Hennessey Venom GT2

Reasons to consider the
Hennessey Venom GT2

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Much more powerful engine 1,500 HP vs 612 HP @ 6,500 RPM Around 2.5x stronger engine
Much more expensive sticker price $950k vs $246k More than 3.8x more expensive harder to own
Much bigger engine 7,000 cc vs 3,600 cc Around 95% bigger engine
Lighter curb weight 2,685 lb vs 3,014 lb More than 10% lighter curb weight; less inertia to overcome when accelerating

Specifications Full list of technical specs

general

911 GT2 RS  vs
Venom GT2 
Brand Porsche Hennessey
Price 245,950 950,000
Type of car Production car Production car
Year 2010 2013

transmission

Drivetrain RWD w/PSM, LSD RWD
Gearing Traditional Traditional
# of gears 6 6
Gear ratios
1: 3.15:1
2: 1.89:1
3: 1.4:1
4: 1.09:1
5: 0.89:1
6: 0.73:1
Axle ratio 3.44:1 3.36:1

suspension, wheels & brakes

Front brakes Brembo 14.96 in Disc Brembo Disc
Rear brakes Brembo 13.78 in Disc Brembo Disc
Front wheels 483/? 19 508/? 241
Rear wheels 483/? 19 508/? 318

power & handling

911 GT2 RS  vs
Venom GT2 
Power-to-weight ratio 4.92 lb/hp 1.79 lb/hp
Maximum hp 612 HP @ 6,500 RPM 1,500 HP
Weight distribution 39%/61% 40%/60%
Steering system Rack and pinion Rack and pinion

engine

Displacement 3,600 cc 7,000 cc
Cylinders Flat 6 V8
Air compressor Twin turbocharger Turbocharger
Fuels
Gas
Compression ratio 9:1 8.8:1
Valves per cylinder 4 2

physical dimensions

Curb weight 3,014 lb 2,685 lb
Width 72.9 in 77.2 in
Height 58.3 in 42.5 in
Length 175.9 in 183.3 in
Front track width 59.4 in 63.5 in
Wheelbase 92.5 in 110.2 in
Porsche 911 GT2 RS
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Hennessey Venom GT2
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