1975 Bristol 411 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Bristol 411. In addition, the cost of maintenance, including insurance, on 1975 Bristol 411 would be higher. At 6,277 cc (8 cylinders), 1975 Bristol 411 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (456 HP @ 3500 RPM) has 168 more horse power than 1975 Bristol 411. (288 HP @ 5200 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1975 Bristol 411. With that said, vehicle weight also plays an important factor in acceleration. 1975 Bristol 411 weights approximately 195 kg more than 2005 Porsche 911.
Let's talk about torque, 2005 Porsche 911 (620 Nm @ 3500 RPM) has 32 more torque (in Nm) than 1975 Bristol 411. (588 Nm @ 3400 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1975 Bristol 411.
Compare all specifications:
| 1975 Bristol 411 | 2005 Porsche 911 | |
| Make | Bristol | Porsche |
| Model | 411 | 911 |
| Year Released | 1975 | 2005 |
| Engine Position | Front | Rear |
| Engine Size | 6277 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 288 HP | 456 HP |
| Engine RPM | 5200 RPM | 3500 RPM |
| Torque | 588 Nm | 620 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Weight | 1710 kg | 1515 kg |
| Vehicle Length | 4920 mm | 4460 mm |
| Vehicle Width | 1740 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1280 mm |
| Wheelbase Size | 2910 mm | 2360 mm |
