1951 Alvis TB 21 vs. 2007 Hummer H3
To start off, 2007 Hummer H3 is newer by 56 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 3,700 cc (5 cylinders), 2007 Hummer H3 is equipped with a bigger engine. In terms of performance, 2007 Hummer H3 (242 HP @ 5600 RPM) has 151 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2007 Hummer H3 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2007 Hummer H3 (329 Nm) has 125 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2007 Hummer H3 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 | 2007 Hummer H3 | |
| Make | Alvis | Hummer |
| Model | TB 21 | H3 |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3700 cc |
| Engine Cylinders | 6 cylinders | 5 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 242 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 204 Nm | 329 Nm |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4750 mm |
| Vehicle Width | 1680 mm | 1900 mm |
| Wheelbase Size | 2750 mm | 2850 mm |
