1951 Alvis TB 21 vs. 2007 Volvo XC90
To start off, 2007 Volvo XC90 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 4,414 cc (8 cylinders), 2007 Volvo XC90 is equipped with a bigger engine. In terms of performance, 2007 Volvo XC90 (311 HP @ 5850 RPM) has 220 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2007 Volvo XC90 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2007 Volvo XC90 (441 Nm) has 237 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2007 Volvo XC90 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 Volvo XC90 | |
| Make | Alvis | Volvo |
| Model | TB 21 | XC90 |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4414 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 311 HP |
| Engine RPM | 4000 RPM | 5850 RPM |
| Torque | 204 Nm | 441 Nm |
| Engine Bore Size | 84 mm | 94.1 mm |
| Engine Stroke Size | 90 mm | 79.5 mm |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 7 seats |
| Vehicle Length | 4430 mm | 4810 mm |
| Vehicle Width | 1680 mm | 1900 mm |
| Wheelbase Size | 2750 mm | 2870 mm |
