Dodge Viper ACR vs Porsche 911 GT2 RS

Picture of Dodge Viper ACR (Mk V)
Picture of Porsche 911 GT2 RS (991)
Category Dodge Viper ACRPorsche 911 GT2 RS
Engine layout 8.4 l V103.8 l B6
Max power (ps / bhp) 654 / 645700 / 690
Max torque (Nm / lb-ft) 813 / 600750 / 553
Curb weight (kg / lb) 1536 / 33861514 / 3338
Power / tonne (ps / bhp) 426 / 420462 / 456

Acceleration (mph)

Speed & distance Dodge Viper ACRPorsche 911 GT2 RS
0 - 30 mph 1.6 s1.2 s
0 - 40 mph 2.3 s1.6 s
0 - 50 mph 2.9 s2.1 s
0 - 60 mph 3.3 s2.6 s
0 - 70 mph 4.4 s3.2 s
0 - 80 mph 5.2 s3.9 s
0 - 90 mph 6.1 s4.6 s
0 - 100 mph 7.4 s5.5 s
0 - 110 mph 8.9 s6.7 s
0 - 120 mph 10.6 s7.8 s
0 - 130 mph 12.3 s9.1 s
0 - 140 mph 14.3 s10.7 s
0 - 150 mph 18.3 s11.8 s
Est. 1/8 mile 8.2 s @ 103.1 mph7.0 s @ 113.7 mph
1/4 mile 11.5 s @ 127.3 mph10.1 s @ 137.9 mph

Acceleration (kph)

Speed & distance Dodge Viper ACRPorsche 911 GT2 RS
0 - 50 kph 2.1 s1.2 s
0 - 100 kph 4.0 s2.6 s
0 - 130 kph 5.6 s3.8 s
0 - 160 kph 7.9 s5.4 s
0 - 180 kph 9.4 s6.7 s
0 - 200 kph 11.8 s7.9 s
0 - 250 kph 20.6 s13.0 s
1000 m 21.3 s18.6 s @ 281.0 kph

Braking distance

Speed Dodge Viper ACRPorsche 911 GT2 RS
100 kph - 0 28 m (93 ft)31 m (101 ft)
200 kph - 0 104 m (341 ft)114 m (375 ft)
60 mph - 0 27 m (87 ft)27 m (87 ft)
70 mph - 0 41 m (134 ft)44 m (144 ft)

General performance

Category Dodge Viper ACRPorsche 911 GT2 RS
Top speed 285 kph (177 mph)342 kph (213 mph)
Est. 0 - 100 mph - 0 12.9 s @ 1053 ft9.6 s @ 699 ft
Est. max acceleration 0.76 g (8 m/s²)1.08 g (11 m/s²)
Fuel economy 21.1 l/100 km (11 mpg US / 13 UK)9.8 l/100 km (24 mpg US / 29 UK)
Lateral acceleration 1.15 g (11 m/s²)1.17 g (11 m/s²)

Summary

Category Dodge Viper ACRPorsche 911 GT2 RS
Track Performance 753800
Straight line speed 17103169
Total 24633969

Verdict

911 GT2 RS is the fastest by a huge margin.

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Tommi95  2m ago

The ACR is still very close to the gt2rs on the track, even though it doesn't have cup2R tyres and despite the difference in acceleration... It's pretty remarkable. Then again it's as extreme as it gets, so its performances are not that surprising. The gt2rs is great, both on track and on a straight line.

 

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196ss  2m ago

It seems to me that Viper may even be somewhat faster in corners due to wider tires and greater downforce. However, on the straights, it is much slower than the GT2 RS, so it loses on all tracks as a result.
It seems to me that the ACR is more comparable to the Manthey Racing edition, which also has an almost racing car aerodynamics.


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hostboy  2m ago

Everyone should know that the Viper ACR was never built as a straight-line kind of car, as it's actually slower than even the standard model in that case scenario. However, the ACR still did not beat the GT2 RS on any tracks. Maybe if the ACR had a dual-clutch instead of a manual...

 

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Maťko  2m ago

  • power difference.
    GT2 RS in some tests makes "only" 605WHP (*1,15=696HP aka claimed 700HP) but also 630 or 683WHP (725 - 785HP).

ACR need + 100-150HP for that amount of downforce.


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196ss  2m ago

It is curious if anyone has information about the comparison of the tires which are used on these cars: Kumho Ecsta V720 and Michelin PS Cup 2r.
Both looks kinda close to race slicks:

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ae1cbd77df0a.jpg?550x800m


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Corvolet3  2m ago

As much as I love the ACR, the new GT2 RS is just in a different league. I'd still pick the Viper cause no modern Porsche could give you a similar driving feeling.


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Lambolover  2m ago @Maťko

Can I know the source these tests please?


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SpeedKing  2m ago @196ss

The Kumho Ecsta V720S would be close to the Cup2 however not in the same league as the Cup2R which has superior grip...


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196ss  2m ago @SpeedKing

Thanks for your opinion, I also think so.
I looked at some forums: they write that Ecsta V720 is roughly similar to Pirelli Trofeo R in performance. So ACR on Cup 2R could cut approximately 1-2% from it's laptimes.


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SpeedKing  2m ago @196ss

Yep to the best of my knowledge Cup2R's are the numero uno semi-slick on the planet. I would like to see a comparison between them and the Bridgestone's that Lambo has gone with for the STO to see whether they buggered up...