1951 Alvis TA 21 vs. 1973 Bristol 411
To start off, 1973 Bristol 411 is newer by 22 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 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 196 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 1973 Bristol 411 should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 1973 Bristol 411 weights approximately 262 kg more than 1951 Alvis TA 21. 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 384 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 1973 Bristol 411 will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21.
Compare all specifications:
| 1951 Alvis TA 21 | 1973 Bristol 411 | |
| Make | Alvis | Bristol |
| Model | TA 21 | 411 |
| Year Released | 1951 | 1973 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 6277 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 93 HP | 289 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 204 Nm | 588 Nm |
| Torque RPM | 2000 RPM | 3400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1448 kg | 1710 kg |
| Vehicle Length | 4630 mm | 4920 mm |
| Vehicle Width | 1680 mm | 1740 mm |
| Vehicle Height | 1600 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2910 mm |
