1951 Alvis TB 21 vs. 1964 Mercedes-Benz SL
To start off, 1964 Mercedes-Benz SL is newer by 13 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, 1964 Mercedes-Benz SL (148 HP @ 5500 RPM) has 57 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1964 Mercedes-Benz SL should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 8 more torque (in Nm) than 1964 Mercedes-Benz SL. (196 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1964 Mercedes-Benz SL.
Compare all specifications:
| 1951 Alvis TB 21 | 1964 Mercedes-Benz SL | |
| Make | Alvis | Mercedes-Benz |
| Model | TB 21 | SL |
| Year Released | 1951 | 1964 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2306 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 148 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 204 Nm | 196 Nm |
| Engine Bore Size | 84 mm | 82 mm |
| Engine Stroke Size | 90 mm | 72.8 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4290 mm |
| Vehicle Width | 1680 mm | 1770 mm |
| Wheelbase Size | 2750 mm | 2410 mm |
