1952 Alvis TB 21 vs. 1977 Mazda 121
To start off, 1977 Mazda 121 is newer by 25 year(s). Which means there will be less support and parts availability for 1952 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1952 Alvis TB 21 would be higher. At 2,992 cc (6 cylinders), 1952 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1952 Alvis TB 21 (91 HP @ 4000 RPM) has 5 more horse power than 1977 Mazda 121. (86 HP @ 4800 RPM). In normal driving conditions, 1952 Alvis TB 21 should accelerate faster than 1977 Mazda 121.
Let's talk about torque, 1952 Alvis TB 21 (204 Nm @ 2200 RPM) has 44 more torque (in Nm) than 1977 Mazda 121. (160 Nm @ 3000 RPM). This means 1952 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1977 Mazda 121.
Compare all specifications:
| 1952 Alvis TB 21 | 1977 Mazda 121 | |
| Make | Alvis | Mazda |
| Model | TB 21 | 121 |
| Year Released | 1952 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 1970 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 86 HP |
| Engine RPM | 4000 RPM | 4800 RPM |
| Torque | 204 Nm | 160 Nm |
| Torque RPM | 2200 RPM | 3000 RPM |
| Engine Bore Size | 84 mm | 80.1 mm |
| Engine Stroke Size | 90 mm | 98 mm |
| Engine Compression Ratio | 7.1:1 | 8.6:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Length | 4430 mm | 4510 mm |
| Vehicle Width | 1680 mm | 1690 mm |
| Wheelbase Size | 2750 mm | 2520 mm |
