1965 AC 427 vs. 1963 Triumph Vitesse
To start off, 1965 AC 427 is newer by 2 year(s). Which means there will be less support and parts availability for 1963 Triumph Vitesse. In addition, the cost of maintenance, including insurance, on 1963 Triumph Vitesse would be higher. At 6,997 cc (8 cylinders), 1965 AC 427 is equipped with a bigger engine. In terms of performance, 1965 AC 427 (410 HP @ 4000 RPM) has 340 more horse power than 1963 Triumph Vitesse. (70 HP @ 5000 RPM). In normal driving conditions, 1965 AC 427 should accelerate faster than 1963 Triumph Vitesse. With that said, vehicle weight also plays an important factor in acceleration. 1965 AC 427 weights approximately 517 kg more than 1963 Triumph Vitesse. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1965 AC 427 (652 Nm @ 3700 RPM) has 527 more torque (in Nm) than 1963 Triumph Vitesse. (125 Nm @ 2800 RPM). This means 1965 AC 427 will have an easier job in driving up hills or pulling heavy equipment than 1963 Triumph Vitesse.
Compare all specifications:
| 1965 AC 427 | 1963 Triumph Vitesse | |
| Make | AC | Triumph |
| Model | 427 | Vitesse |
| Year Released | 1965 | 1963 |
| Engine Position | Front | Front |
| Engine Size | 6997 cc | 1596 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 410 HP | 70 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 652 Nm | 125 Nm |
| Torque RPM | 3700 RPM | 2800 RPM |
| Engine Bore Size | 107.7 mm | 66.8 mm |
| Engine Stroke Size | 96 mm | 76 mm |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1397 kg | 880 kg |
| Vehicle Length | 4430 mm | 3890 mm |
| Vehicle Width | 1710 mm | 1530 mm |
| Vehicle Height | 1300 mm | 1340 mm |
| Wheelbase Size | 2440 mm | 2270 mm |
| Fuel Tank Capacity | 81 L | 53 L |
