The Coupe version of the Road Runner model has a 6981 cc (426.0 ci) 12 valve V 8 Naturally Aspirated Petrol engine.
This particular Plymouth Road Runner 426 Hemi V8 1st Gen has a 4 speed / Manual gearbox with the power being delivered through it's RWD system.
The Road Runner's 6981 cc (426.0 ci) engine reaches its peak power of 425 bhp (316 kW) @ 5000 rpm.
The Plymouth Road Runner produces torque measuring 490 lb-ft (664.3 Nm) @ 4000 rpm.
The Road Runner weighs around 1691 kg (3728 lb). Power to weight can be calculated at 251.3 bhp per metric ton or alternatively as 289.7 lb-ft of torque per ton.
The Plymouth Road Runner 426 Hemi V8 1st Gen -  has a top speed of 105 mph (168.9 kph)
This Road Runner accelerates 0-60mph (96.6 kph) in 5.3 seconds or 0-100kph in 5.5s and can achieve an estimated 1/4 mile drag time in 13.71 seconds with a trap speed of 105.9 mph.