1951 Alvis TB 21 vs. 2000 BMW Z3
To start off, 2000 BMW Z3 is newer by 49 year(s). Which means there will be less support and parts availability for 1951 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TB 21 would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 2000 BMW Z3 (167 HP @ 6100 RPM) has 76 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2000 BMW Z3 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2000 BMW Z3 (210 Nm) has 6 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2000 BMW Z3 will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 2000 BMW Z3 | |
| Make | Alvis | BMW |
| Model | TB 21 | Z3 |
| Year Released | 1951 | 2000 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2171 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 167 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 204 Nm | 210 Nm |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 90 mm | 72 mm |
| Engine Compression Ratio | 7.1:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4060 mm |
| Vehicle Width | 1680 mm | 1750 mm |
| Wheelbase Size | 2750 mm | 2450 mm |
