1967 AC 428 vs. 1978 Bristol 412
To start off, 1978 Bristol 412 is newer by 11 year(s). Which means there will be less support and parts availability for 1967 AC 428. In addition, the cost of maintenance, including insurance, on 1967 AC 428 would be higher. At 7,010 cc (8 cylinders), 1967 AC 428 is equipped with a bigger engine. In terms of performance, 1967 AC 428 (345 HP @ 4600 RPM) has 174 more horse power than 1978 Bristol 412. (171 HP @ 4000 RPM). In normal driving conditions, 1967 AC 428 should accelerate faster than 1978 Bristol 412. With that said, vehicle weight also plays an important factor in acceleration. 1978 Bristol 412 weights approximately 207 kg more than 1967 AC 428.
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, 1967 AC 428 (627 Nm @ 2800 RPM) has 261 more torque (in Nm) than 1978 Bristol 412. (366 Nm @ 2000 RPM). This means 1967 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1978 Bristol 412.
Compare all specifications:
| 1967 AC 428 | 1978 Bristol 412 | |
| Make | AC | Bristol |
| Model | 428 | 412 |
| Year Released | 1967 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 7010 cc | 5898 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 345 HP | 171 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 627 Nm | 366 Nm |
| Torque RPM | 2800 RPM | 2000 RPM |
| Engine Bore Size | 105 mm | 101.6 mm |
| Engine Stroke Size | 101.2 mm | 90.9 mm |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 2 seats | 4 seats |
| Vehicle Weight | 1483 kg | 1690 kg |
| Vehicle Length | 4520 mm | 4950 mm |
| Vehicle Width | 1710 mm | 1780 mm |
| Vehicle Height | 1260 mm | 1450 mm |
| Wheelbase Size | 2440 mm | 2910 mm |
