1951 Alvis TB 21 vs. 2010 Mercedes-Benz SL
To start off, 2010 Mercedes-Benz SL is newer by 59 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 5,980 cc (12 cylinders), 2010 Mercedes-Benz SL is equipped with a bigger engine. In terms of performance, 2010 Mercedes-Benz SL (605 HP) has 514 more horse power than 1951 Alvis TB 21. (91 HP) In normal driving conditions, 2010 Mercedes-Benz SL should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2010 Mercedes-Benz SL (1,000 Nm) has 796 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2010 Mercedes-Benz SL 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 | 2010 Mercedes-Benz SL | |
| Make | Alvis | Mercedes-Benz |
| Model | TB 21 | SL |
| Year Released | 1951 | 2010 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5980 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 91 HP | 605 HP |
| Torque | 204 Nm | 1000 Nm |
| Engine Bore Size | 84 mm | 82.6 mm |
| Engine Stroke Size | 90 mm | 93 mm |
| Engine Compression Ratio | 7.1:1 | 9.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Vehicle Length | 4430 mm | 4540 mm |
| Vehicle Width | 1680 mm | 1820 mm |
| Wheelbase Size | 2750 mm | 2570 mm |
