1951 Alvis TB 21 vs. 1979 Mercedes-Benz S
To start off, 1979 Mercedes-Benz S is newer by 28 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, 1979 Mercedes-Benz S (158 HP @ 5500 RPM) has 67 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1979 Mercedes-Benz S should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1979 Mercedes-Benz S (223 Nm) has 19 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1979 Mercedes-Benz S 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 | 1979 Mercedes-Benz S | |
| Make | Alvis | Mercedes-Benz |
| Model | TB 21 | S |
| Year Released | 1951 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2746 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 158 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 204 Nm | 223 Nm |
| Engine Compression Ratio | 7.1:1 | 8.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4740 mm |
| Vehicle Width | 1680 mm | 1880 mm |
| Wheelbase Size | 2750 mm | 2860 mm |
