1951 Alvis TB 21 vs. 2008 Citroen C4
To start off, 2008 Citroen C4 is newer by 57 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 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 2008 Citroen C4 (108 HP @ 4000 RPM) has 17 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2008 Citroen C4 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2008 Citroen C4 (240 Nm) has 36 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2008 Citroen C4 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 | 2008 Citroen C4 | |
| Make | Alvis | Citroen |
| Model | TB 21 | C4 |
| Year Released | 1951 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1560 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 108 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 204 Nm | 240 Nm |
| Engine Bore Size | 84 mm | 75 mm |
| Engine Stroke Size | 90 mm | 88.3 mm |
| Engine Compression Ratio | 7.1:1 | 18.0:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4270 mm |
| Vehicle Width | 1680 mm | 1780 mm |
| Wheelbase Size | 2750 mm | 2610 mm |
