1951 Alvis TB 21 vs. 2009 Mercedes-Benz S
To start off, 2009 Mercedes-Benz S is newer by 58 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 5,513 cc (12 cylinders), 2009 Mercedes-Benz S is equipped with a bigger engine. In terms of performance, 2009 Mercedes-Benz S (510 HP @ 5000 RPM) has 419 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2009 Mercedes-Benz S should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2009 Mercedes-Benz S (830 Nm) has 626 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2009 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 | 2009 Mercedes-Benz S | |
| Make | Alvis | Mercedes-Benz |
| Model | TB 21 | S |
| Year Released | 1951 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 5513 cc |
| Engine Cylinders | 6 cylinders | 12 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 91 HP | 510 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 204 Nm | 830 Nm |
| Engine Compression Ratio | 7.1:1 | 9.0:1 |
| Fuel Type | Gasoline | Diesel |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5210 mm |
| Vehicle Width | 1680 mm | 1880 mm |
| Wheelbase Size | 2750 mm | 3170 mm |
