1973 AC 428 vs. 1950 Alvis TB 21
To start off, 1973 AC 428 is newer by 23 year(s). Which means there will be less support and parts availability for 1950 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1950 Alvis TB 21 would be higher. At 7,002 cc (8 cylinders), 1973 AC 428 is equipped with a bigger engine. In terms of performance, 1973 AC 428 (298 HP @ 4600 RPM) has 207 more horse power than 1950 Alvis TB 21. (91 HP @ 4000 RPM). In normal driving conditions, 1973 AC 428 should accelerate faster than 1950 Alvis TB 21.
Let's talk about torque, 1973 AC 428 (639 Nm) has 435 more torque (in Nm) than 1950 Alvis TB 21. (204 Nm). This means 1973 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1950 Alvis TB 21.
Compare all specifications:
| 1973 AC 428 | 1950 Alvis TB 21 | |
| Make | AC | Alvis |
| Model | 428 | TB 21 |
| Year Released | 1973 | 1950 |
| Engine Position | Front | Front |
| Engine Size | 7002 cc | 2993 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 298 HP | 91 HP |
| Engine RPM | 4600 RPM | 4000 RPM |
| Torque | 639 Nm | 204 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4430 mm |
| Vehicle Width | 1710 mm | 1680 mm |
| Wheelbase Size | 2450 mm | 2750 mm |
