1951 Alvis TB 21 vs. 2007 Mazda CX-9
To start off, 2007 Mazda CX-9 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 3,500 cc (8 cylinders), 2007 Mazda CX-9 is equipped with a bigger engine. In terms of performance, 2007 Mazda CX-9 (250 HP) has 159 more horse power than 1951 Alvis TB 21. (91 HP) In normal driving conditions, 2007 Mazda CX-9 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2007 Mazda CX-9 (325 Nm) has 121 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2007 Mazda CX-9 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 Mazda CX-9 | |
| Make | Alvis | Mazda |
| Model | TB 21 | CX-9 |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3500 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 250 HP |
| Torque | 204 Nm | 325 Nm |
| Number of Seats | 5 seats | 7 seats |
| Vehicle Length | 4430 mm | 5080 mm |
| Vehicle Width | 1680 mm | 1940 mm |
| Wheelbase Size | 2750 mm | 2880 mm |
