1958 Bristol 406 vs. 1975 Porsche 911
To start off, 1975 Porsche 911 is newer by 17 year(s). Which means there will be less support and parts availability for 1958 Bristol 406. In addition, the cost of maintenance, including insurance, on 1958 Bristol 406 would be higher. At 2,994 cc (6 cylinders), 1975 Porsche 911 is equipped with a bigger engine. In terms of performance, 1975 Porsche 911 (260 HP @ 5500 RPM) has 169 more horse power than 1958 Bristol 406. (91 HP @ 4700 RPM) In normal driving conditions, 1975 Porsche 911 should accelerate faster than 1958 Bristol 406. With that said, vehicle weight also plays an important factor in acceleration. 1958 Bristol 406 weights approximately 65 kg more than 1975 Porsche 911.
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, 1975 Porsche 911 (343 Nm @ 4000 RPM) has 169 more torque (in Nm) than 1958 Bristol 406. (174 Nm @ 3000 RPM). This means 1975 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1958 Bristol 406.
Compare all specifications:
| 1958 Bristol 406 | 1975 Porsche 911 | |
| Make | Bristol | Porsche |
| Model | 406 | 911 |
| Year Released | 1958 | 1975 |
| Engine Position | Front | Rear |
| Engine Size | 2216 cc | 2994 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 260 HP |
| Engine RPM | 4700 RPM | 5500 RPM |
| Torque | 174 Nm | 343 Nm |
| Torque RPM | 3000 RPM | 4000 RPM |
| Engine Bore Size | 68.7 mm | 95.1 mm |
| Engine Stroke Size | 99.6 mm | 70.4 mm |
| Engine Compression Ratio | 8.5:1 | 6.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1260 kg | 1195 kg |
| Vehicle Length | 4990 mm | 4300 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1530 mm | 1330 mm |
| Wheelbase Size | 2900 mm | 2270 mm |
| Fuel Tank Capacity | 81 L | 79 L |
