1973 Bristol 411 vs. 1966 Holden HD
To start off, 1973 Bristol 411 is newer by 7 year(s). Which means there will be less support and parts availability for 1966 Holden HD. In addition, the cost of maintenance, including insurance, on 1966 Holden HD would be higher. At 6,277 cc (8 cylinders), 1973 Bristol 411 is equipped with a bigger engine. In terms of performance, 1973 Bristol 411 (289 HP @ 5200 RPM) has 167 more horse power than 1966 Holden HD. (122 HP @ 4600 RPM). In normal driving conditions, 1973 Bristol 411 should accelerate faster than 1966 Holden HD. With that said, vehicle weight also plays an important factor in acceleration. 1973 Bristol 411 weights approximately 510 kg more than 1966 Holden HD. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1973 Bristol 411 (588 Nm @ 3400 RPM) has 351 more torque (in Nm) than 1966 Holden HD. (237 Nm @ 2200 RPM). This means 1973 Bristol 411 will have an easier job in driving up hills or pulling heavy equipment than 1966 Holden HD.
Compare all specifications:
| 1973 Bristol 411 | 1966 Holden HD | |
| Make | Bristol | Holden |
| Model | 411 | HD |
| Year Released | 1973 | 1966 |
| Engine Position | Front | Front |
| Engine Size | 6277 cc | 2930 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 289 HP | 122 HP |
| Engine RPM | 5200 RPM | 4600 RPM |
| Torque | 588 Nm | 237 Nm |
| Torque RPM | 3400 RPM | 2200 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1710 kg | 1200 kg |
| Vehicle Length | 4920 mm | 4580 mm |
| Vehicle Width | 1740 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2910 mm | 2700 mm |
