1951 Alvis TB 21 vs. 2007 Audi A4
To start off, 2007 Audi A4 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 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 2007 Audi A4 (200 HP @ 5100 RPM) has 109 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2007 Audi A4 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2007 Audi A4 (281 Nm) has 77 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2007 Audi A4 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 Audi A4 | |
| Make | Alvis | Audi |
| Model | TB 21 | A4 |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 200 HP |
| Engine RPM | 4000 RPM | 5100 RPM |
| Torque | 204 Nm | 281 Nm |
| Engine Bore Size | 84 mm | 82.5 mm |
| Engine Stroke Size | 90 mm | 92.8 mm |
| Engine Compression Ratio | 7.1:1 | 10.5:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4590 mm |
| Vehicle Width | 1680 mm | 1780 mm |
| Wheelbase Size | 2750 mm | 2660 mm |
