1951 Alvis TB 21 vs. 2009 Mazda 6
To start off, 2009 Mazda 6 is newer by 58 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, 2009 Mazda 6 (171 HP @ 6000 RPM) has 80 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2009 Mazda 6 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2009 Mazda 6 (226 Nm) has 22 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2009 Mazda 6 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 | 2009 Mazda 6 | |
| Make | Alvis | Mazda |
| Model | TB 21 | 6 |
| Year Released | 1951 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2489 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 171 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 226 Nm |
| Engine Compression Ratio | 7.1:1 | 10.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4930 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Wheelbase Size | 2750 mm | 2800 mm |
