Road Tests Real world tests of 911 GT3 vs Ariel Atom

0-60mph

Top speed

Atom V8 500
170 mph

0-100mph

Top Gear track time

Atom V8 500
1:15.10

1/4 mile

Differences What are the advantages of each

Side view of Porsche 911 GT3

Reasons to consider the
Porsche 911 GT3 (997 Mk2)

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Faster top speed 195 mph vs 170 mph 25 more mph; leaves lesser cars in the dust on the straights
Slightly more torque 318 ft-lb @ 6,250 RPM vs 268 ft-lb @ 7,750 RPM Around 20% stronger engine from a stand-still; more acceleration power
Bigger engine 3,800 cc vs 3,000 cc More than 25% bigger engine
Side view of Ariel Atom

Reasons to consider the
Ariel Atom V8 500

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Has an air compressor Supercharger vs None About half of supercars have an air compressor
Really great lap time on the Top Gear track 1:15.10 vs 1:23.10 Around 10% great lap time on the Top Gear track
Faster to 100mph 5.4 s vs 8.2 s Around 35% faster to 100mph
Significantly lighter curb weight 1,210 lb vs 3,027 lb 2.5x lighter curb weight; less inertia to overcome when accelerating
Faster in the quarter mile 11.2 s vs 11.8 s More than 5% faster at the drag strip
Slightly more expensive sticker price $225k vs $112k More than 2x more expensive harder to own

Specifications Full list of technical specs

general

911 GT3  vs
Ariel Atom 
Brand Porsche Ariel
Price 112,200 225,000
Type of car Production car Production car
Year 2009 2008

power & handling

Power-to-weight ratio 7.06 lb/hp 2.55 lb/hp
Maximum hp 429 HP @ 7,600 RPM 475 HP @ 10,000 RPM
Maximum torque 318 ft-lb @ 6,250 RPM 268 ft-lb @ 7,750 RPM
Engine placement Rear Mid
Steering system Rack and pinion Rack and pinion

engine

Displacement 3,800 cc 3,000 cc
Cylinders I6 V8
Air compressor None Supercharger
Fuels
Gas
Valvetrain DOHC DOHC

road tests

911 GT3  vs
Ariel Atom 
Top speed 195 mph 170 mph
1/4 mile 11.8 s 11.2 s
0-60mph 3.6 s 2.3 s
0-100mph 8.2 s 5.4 s
Top gear time 1:23.10 1:15.10

transmission

Drivetrain RWD w/PSM 2WD
Gearing Traditional Traditional
# of gears 6 6

suspension, wheels & brakes

Front brakes 14.96 in Disc Disc
Rear brakes 13.78 in Disc Disc

physical dimensions

Curb weight 3,027 lb 1,210 lb
Porsche 911 GT3 (997 Mk2)
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Ariel Atom V8 500
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