Performance & Classic Car Data

Performance Review: Plymouth Road Runner 426 Hemi V8 1st Gen - [1968]

Plymouth Road Runner 426 Hemi V8 1st Gen - [1968] image

Plymouth Road Runner 426 Hemi V8 1st Gen - [1968]

Plymouth Logo

Plymouth

Figures & Specs Summary:

  • Year: 1968 | Type: Coupe
  • Engine: 6981 cc (426.0 ci) 12 Valve
  • Engine Formation: V8
  • Aspiration: Naturally Aspirated
  • Fuel Type: Petrol
  • Transmission: 4 speed / Manual
  • Top Speed: 105 mph (168.9 kph)
  • 0-60 mph (96.6 kph): 5.3 secs
  • 0-100 kph (0-62 mph): 5.5 secs
  • 0-100 mph (160.9 kph): 0.0 secs
  • Power: 425 bhp (316 kW) @ 5000 rpm
  • Kerbweight: 1691 kgs (3728 lbs)
  • Torque: 490 lb-ft (664.3 Nm) @ 4000 rpm
  • Drive: RWD | Engine Location: Front
  • 1/4 Mile (Est.): 12.92 secs @ 105.9 mph
  • BHP Per Ton: 251.3 bhp
  • Torque Per Ton: 289.7 lb-ft
Plymouth Road Runner 426 Hemi V8 1st Gen - [1968] image

Plymouth Road Runner Performance Review.

Introduction:

This edition of the Plymouth Road Runner 426 Hemi V8 1st Gen is the 4 speed / Manual version and was first brought out in 1968. This was at around the same time as the introduction of the 1969 McLaren M6 GT 5.7 V8 and the 1969 Ford Mustang Boss 429.This particular Plymouth Road Runner has a 6981cc Naturally Aspirated Petrol powerplant with 8 cylinders in a V formation.

Dodge Challenger SRT Demon 6.2 V8 - [2017] image

Alternative Petrol V8's includes the 2017 Dodge Challenger SRT Demon 6.2 V8

The Road Runner shares its Petrol V8 engine configuration with the likes of the 2017 Dodge Challenger SRT Demon 6.2 V8 and the 2008 Ariel Atom V8 500. If you're looking for other fast cars which share the Road Runner's Rear Wheel Drive, Coupe combination then how about the 1982 Fiat X1/9 1.5 8V or the 1965 Aston-Martin DB6 1965.

Power and Weight:

Weighing in at 1691 kgs (3728 lbs) this makes the Plymouth Road Runner 426 Hemi V8 1st Gen in the same weight category as the 2022 BMW 4 Series M4 CSL 3.0 Twin Turbo G82 or the give or take 50kg.

Ford Mustang GT 5.0 V8 - [2022] image

The Plymouth Road Runner shares the same bhp with the 2022 Ford Mustang GT 5.0 V8 (450 bhp)

In terms of power the 6981cc 12V V8 engine produces 425 bhp (316 kW) @ 5000 rpm similar to the 2022 Ford Mustang GT 5.0 V8 (450 bhp) or the 2020 Lotus Evora GT410 3.5 V6 Supercharged (410 bhp).

The Naturally Aspirated V8 throws out 490 lb-ft (664.3 Nm) @ 4000 rpm placing it with cars of similar torque performance figures such as the 2022 BMW 4 Series M4 CSL 3.0 Twin Turbo G82 (479 lb-ft) or the 2022 BMW 3 Series M3 Competition Touring 3.0 xDrive (479 lb-ft).

Power to Weight:

If one combines the weight with power or torque performance for the Plymouth Road Runner you can get a better idea of it's real world performance.

Aston-Martin Rapide S 5.9 V12 - [2013] image

The 2013 Aston-Martin Rapide S 5.9 V12 (276.3 bhp per ton) has similar Bhp Per Ton stats as the Plymouth Road Runner.

The Plymouth Road Runner has a Power to weight ratio of 251.3 bhp per ton and 289.7 lb-ft per ton. Bhp Per Ton figures of the 1968 Road Runner competing with the 2013 Aston-Martin Rapide S 5.9 V12 (276.3 bhp per ton) or the 2022 Lotus Emira First Edition 3.5 V6 Supercharged (276.2 bhp per ton).


Power to Weight(cont.):

If you agree with the late great Carroll Shelby then arguably an even better indicator of potential performance, Torque. Use weight as well and you end up with - Torque per ton, with the Plymouth Road Runner generating around 289.7 lb-ft per ton. If you're curious as to what other cars have as much torque to weight then look no further than the 2021 Aston-Martin Speedster 5.2 V12 Twin Turbo (314.4 lb-ft per ton) or the 1966 Chevrolet Corvette C2 Stingray 427 425hp (314.4 lb-ft per ton).

Acceleration:

With a 0-60mph time of 5.3 secs or a 0-100km/h (0-62mph) of 5.5 secs, this made the Plymouth Road Runner 426 Hemi V8 1st Gen as fast as the 2019 Renault Megane RS 1.8 Turbo 300 Trophy-R (5.3 secs) the 2019 Tesla Model 3 Standard Range Plus (5.3 secs) the 2017 Land-Rover Velar 3.0 V6 Supercharged 360 (5.3 secs) the or the 2017 Mercedes G Class 63 AMG (5.3 secs). This Plymouth Road Runner 426 Hemi V8 1st Gen is also faster than the 2019 Volkswagen-VW Golf GTi TCR 2.0 Turbo (5.4 secs) the 2019 Jaguar F Type 2.0 Turbo Cabriolet (5.4 secs) the 2019 Jaguar F Type 2.0 Turbo (5.4 secs) the and the 2017 Volkswagen-VW Arteon 2.0 TSI 4Motion (5.4 secs).

Dodge Coronet Super Bee 6.3 V8 383 - [1968] image

Quarter Mile time is a close race between the Road Runner and the 1968 Dodge Coronet Super Bee 6.3 V8 383

When talking about the performance of the Plymouth Road Runner on the drag strip it can reach a quarter mile in an estimated 12.92 secs @ 105.9 mph. Similar performance down the quarter mile can be found with the the 1968 Dodge Coronet Super Bee 6.3 V8 383 (12.87 secs), the 2016 Maserati Quattroporte 3.0 V6 Biturbo (12.88 secs), and the 1970 Ford Torino 2nd Gen Cobra SportsRoof Boss (12.89 secs).

Top Speed:

Modern performance cars are often artificially restricted to 155mph. The 1968 version of the Plymouth Road Runner 426 Hemi V8 1st Gen has a maximum speed of 105mph.

 image

Top Speed of the 1968 Road Runner equals the 1997 Citroen Saxo 1.6i VTR (116 mph)

If maxing out your car on the AutoBahn is your thing and you're wondering what's faster than the 1968 Plymouth Road Runner 426 Hemi V8 1st Gen then how about the 1997 Citroen Saxo 1.6i VTR (116 mph), the 1994 Peugeot 106 Rallye (116 mph), or the 1986 Ford Escort XR3i MK4 (116 mph).

Related Links:

1968 Road Runner Rivals List.

Car Comparison


Performance Figures & Specs:

Choose a Car Make for a List of More Performance Figures and Specs.




Closest Rivals | Similar Performance

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Dodge Viper ACR 8.4 V10 Extreme Aero

Dodge Viper ACR 8.4 V10 Extreme Aero
Engine: Naturally Aspirated Petrol | 8382cc 20v V10
Top Speed: 177 mph
0-60mph: 3.3 seconds


Jaguar Mark VII M 3.4L

Jaguar Mark VII M 3.4L
Engine: Naturally Aspirated Petrol | 3442cc 12v St6
Top Speed: 167.3 kph
0-100kph: 14.6 seconds


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