1951 Alvis TB 21 vs. 1980 Saab 900
To start off, 1980 Saab 900 is newer by 29 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, 1980 Saab 900 (108 HP @ 5200 RPM) has 17 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1980 Saab 900 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 40 more torque (in Nm) than 1980 Saab 900. (164 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1980 Saab 900.
Compare all specifications:
| 1951 Alvis TB 21 | 1980 Saab 900 | |
| Make | Alvis | Saab |
| Model | TB 21 | 900 |
| Year Released | 1951 | 1980 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1985 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 108 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 204 Nm | 164 Nm |
| Engine Bore Size | 84 mm | 90 mm |
| Engine Stroke Size | 90 mm | 78 mm |
| Engine Compression Ratio | 7.1:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4750 mm |
| Vehicle Width | 1680 mm | 1700 mm |
| Wheelbase Size | 2750 mm | 2530 mm |
