1976 Bristol 603 vs. 1972 Porsche 917
To start off, 1976 Bristol 603 is newer by 4 year(s). Which means there will be less support and parts availability for 1972 Porsche 917. In addition, the cost of maintenance, including insurance, on 1972 Porsche 917 would be higher. At 5,210 cc (8 cylinders), 1976 Bristol 603 is equipped with a bigger engine. In terms of performance, 1972 Porsche 917 (520 HP) has 375 more horse power than 1976 Bristol 603. (145 HP) In normal driving conditions, 1972 Porsche 917 should accelerate faster than 1976 Bristol 603. With that said, vehicle weight also plays an important factor in acceleration. 1976 Bristol 603 weights approximately 987 kg more than 1972 Porsche 917.
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, 1972 Porsche 917 (610 Nm) has 277 more torque (in Nm) than 1976 Bristol 603. (333 Nm). This means 1972 Porsche 917 will have an easier job in driving up hills or pulling heavy equipment than 1976 Bristol 603.
Compare all specifications:
| 1976 Bristol 603 | 1972 Porsche 917 | |
| Make | Bristol | Porsche |
| Model | 603 | 917 |
| Year Released | 1976 | 1972 |
| Engine Position | Front | Middle |
| Engine Size | 5210 cc | 4994 cc |
| Horse Power | 145 HP | 520 HP |
| Torque | 333 Nm | 610 Nm |
| Engine Compression Ratio | 8.0:1 | 10.5:1 |
| Top Speed | 225 km/hour | 321 km/hour |
| Drive Type | Rear | Rear |
| Vehicle Weight | 1785 kg | 798 kg |
