1951 Alvis TB 21 vs. 2005 Audi A4
To start off, 2005 Audi A4 is newer by 54 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, 2005 Audi A4 (101 HP @ 5600 RPM) has 10 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2005 Audi A4 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 56 more torque (in Nm) than 2005 Audi A4. (148 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 1951 Alvis TB 21 | 2005 Audi A4 | |
| Make | Alvis | Audi |
| Model | TB 21 | A4 |
| Year Released | 1951 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1595 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 101 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 204 Nm | 148 Nm |
| Engine Bore Size | 84 mm | 81 mm |
| Engine Stroke Size | 90 mm | 77.4 mm |
| Engine Compression Ratio | 7.1:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4550 mm |
| Vehicle Width | 1680 mm | 1780 mm |
| Wheelbase Size | 2750 mm | 2770 mm |
