1952 Alvis TB 21 vs. 1981 BMW 528
To start off, 1981 BMW 528 is newer by 29 year(s). Which means there will be less support and parts availability for 1952 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1952 Alvis TB 21 would be higher. At 2,992 cc (6 cylinders), 1952 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1981 BMW 528 (181 HP @ 5800 RPM) has 90 more horse power than 1952 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1981 BMW 528 should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 1981 BMW 528 (240 Nm @ 4200 RPM) has 36 more torque (in Nm) than 1952 Alvis TB 21. (204 Nm @ 2200 RPM). This means 1981 BMW 528 will have an easier job in driving up hills or pulling heavy equipment than 1952 Alvis TB 21.
Compare all specifications:
| 1952 Alvis TB 21 | 1981 BMW 528 | |
| Make | Alvis | BMW |
| Model | TB 21 | 528 |
| Year Released | 1952 | 1981 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 2788 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 181 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 204 Nm | 240 Nm |
| Torque RPM | 2200 RPM | 4200 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 90 mm | 80 mm |
| Engine Compression Ratio | 7.1:1 | 9.3:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4630 mm |
| Vehicle Width | 1680 mm | 1710 mm |
| Wheelbase Size | 2750 mm | 2630 mm |
