1951 Alvis TB 21 vs. 2005 GMC Envoy
To start off, 2005 GMC Envoy is newer by 54 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 4,163 cc (6 cylinders), 2005 GMC Envoy is equipped with a bigger engine. In terms of performance, 2005 GMC Envoy (275 HP) has 184 more horse power than 1951 Alvis TB 21. (91 HP) In normal driving conditions, 2005 GMC Envoy should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2005 GMC Envoy (373 Nm) has 169 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2005 GMC Envoy 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 | 2005 GMC Envoy | |
| Make | Alvis | GMC |
| Model | TB 21 | Envoy |
| Year Released | 1951 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 275 HP |
| Torque | 204 Nm | 373 Nm |
| Engine Bore Size | 84 mm | 93.1 mm |
| Engine Stroke Size | 90 mm | 102 mm |
| Engine Compression Ratio | 7.1:1 | 10.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5300 mm |
| Vehicle Width | 1680 mm | 1880 mm |
| Wheelbase Size | 2750 mm | 3280 mm |
