1950 Alvis TB 21 vs. 2011 Saab 9-4X
To start off, 2011 Saab 9-4X is newer by 61 year(s). Which means there will be less support and parts availability for 1950 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1950 Alvis TB 21 would be higher. At 2,993 cc (6 cylinders), 1950 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 2011 Saab 9-4X (300 HP @ 5500 RPM) has 209 more horse power than 1950 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2011 Saab 9-4X should accelerate faster than 1950 Alvis TB 21.
Let's talk about torque, 2011 Saab 9-4X (400 Nm) has 196 more torque (in Nm) than 1950 Alvis TB 21. (204 Nm). This means 2011 Saab 9-4X will have an easier job in driving up hills or pulling heavy equipment than 1950 Alvis TB 21.
Compare all specifications:
| 1950 Alvis TB 21 | 2011 Saab 9-4X | |
| Make | Alvis | Saab |
| Model | TB 21 | 9-4X |
| Year Released | 1950 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2800 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 300 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 204 Nm | 400 Nm |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4829 mm |
| Vehicle Width | 1680 mm | 1905 mm |
| Wheelbase Size | 2750 mm | 2807 mm |
| Fuel Tank Capacity | 64 L | 80 L |
