1951 Alvis TB 21 vs. 1974 GMC Suburban
To start off, 1974 GMC Suburban is newer by 23 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 4,093 cc (6 cylinders), 1974 GMC Suburban is equipped with a bigger engine. In terms of performance, 1974 GMC Suburban (100 HP @ 3600 RPM) has 9 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1974 GMC Suburban should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1974 GMC Suburban (243 Nm) has 39 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1974 GMC Suburban 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 | 1974 GMC Suburban | |
| Make | Alvis | GMC |
| Model | TB 21 | Suburban |
| Year Released | 1951 | 1974 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4093 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 100 HP |
| Engine RPM | 4000 RPM | 3600 RPM |
| Torque | 204 Nm | 243 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 5480 mm |
| Vehicle Width | 1680 mm | 1950 mm |
| Wheelbase Size | 2750 mm | 3300 mm |
