1951 Alvis TB 21 vs. 1990 Isuzu Impulse
To start off, 1990 Isuzu Impulse is newer by 39 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, 1990 Isuzu Impulse (130 HP @ 6800 RPM) has 39 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1990 Isuzu Impulse should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 66 more torque (in Nm) than 1990 Isuzu Impulse. (138 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1990 Isuzu Impulse.
Compare all specifications:
| 1951 Alvis TB 21 | 1990 Isuzu Impulse | |
| Make | Alvis | Isuzu |
| Model | TB 21 | Impulse |
| Year Released | 1951 | 1990 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1586 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 130 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 204 Nm | 138 Nm |
| Engine Bore Size | 84 mm | 80 mm |
| Engine Stroke Size | 90 mm | 79 mm |
| Engine Compression Ratio | 7.1:1 | 9.8:1 |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4220 mm |
| Vehicle Width | 1680 mm | 1700 mm |
| Wheelbase Size | 2750 mm | 2460 mm |
