1974 Bristol 411 vs. 1971 Riley 4
To start off, 1974 Bristol 411 is newer by 3 year(s). Which means there will be less support and parts availability for 1971 Riley 4. In addition, the cost of maintenance, including insurance, on 1971 Riley 4 would be higher. At 6,277 cc (8 cylinders), 1974 Bristol 411 is equipped with a bigger engine. In terms of performance, 1974 Bristol 411 (288 HP @ 5200 RPM) has 221 more horse power than 1971 Riley 4. (67 HP @ 5000 RPM). In normal driving conditions, 1974 Bristol 411 should accelerate faster than 1971 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 1974 Bristol 411 weights approximately 562 kg more than 1971 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1974 Bristol 411 (588 Nm @ 3400 RPM) has 467 more torque (in Nm) than 1971 Riley 4. (121 Nm @ 2500 RPM). This means 1974 Bristol 411 will have an easier job in driving up hills or pulling heavy equipment than 1971 Riley 4.
Compare all specifications:
| 1974 Bristol 411 | 1971 Riley 4 | |
| Make | Bristol | Riley |
| Model | 411 | 4 |
| Year Released | 1974 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 6277 cc | 1622 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 288 HP | 67 HP |
| Engine RPM | 5200 RPM | 5000 RPM |
| Torque | 588 Nm | 121 Nm |
| Torque RPM | 3400 RPM | 2500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1710 kg | 1148 kg |
| Vehicle Length | 4920 mm | 4540 mm |
| Vehicle Width | 1740 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2910 mm | 2530 mm |
