1952 Alvis TB 21 vs. 1988 BMW 520
To start off, 1988 BMW 520 is newer by 36 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, 1988 BMW 520 (129 HP @ 6000 RPM) has 38 more horse power than 1952 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1988 BMW 520 should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 1952 Alvis TB 21 (204 Nm @ 2200 RPM) has 30 more torque (in Nm) than 1988 BMW 520. (174 Nm @ 4000 RPM). This means 1952 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1988 BMW 520.
Compare all specifications:
| 1952 Alvis TB 21 | 1988 BMW 520 | |
| Make | Alvis | BMW |
| Model | TB 21 | 520 |
| Year Released | 1952 | 1988 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 1989 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 129 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 174 Nm |
| Torque RPM | 2200 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 90 mm | 66 mm |
| Engine Compression Ratio | 7.1:1 | 10.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4780 mm |
| Vehicle Width | 1680 mm | 1810 mm |
| Wheelbase Size | 2750 mm | 2770 mm |
