1951 Alvis TB 21 vs. 1991 Mercedes-Benz 500
To start off, 1991 Mercedes-Benz 500 is newer by 40 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 4,973 cc (8 cylinders), 1991 Mercedes-Benz 500 is equipped with a bigger engine. In terms of performance, 1991 Mercedes-Benz 500 (326 HP @ 5700 RPM) has 235 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1991 Mercedes-Benz 500 should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1991 Mercedes-Benz 500 (480 Nm) has 276 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1991 Mercedes-Benz 500 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 | 1991 Mercedes-Benz 500 | |
| Make | Alvis | Mercedes-Benz |
| Model | TB 21 | 500 |
| Year Released | 1951 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4973 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 326 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 204 Nm | 480 Nm |
| Engine Bore Size | 84 mm | 96.5 mm |
| Engine Stroke Size | 90 mm | 85 mm |
| Engine Compression Ratio | 7.1:1 | 10.0:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5110 mm |
| Vehicle Width | 1680 mm | 1890 mm |
| Wheelbase Size | 2750 mm | 3050 mm |
