1951 Alvis TB 21 vs. 1971 Chevrolet Impala
To start off, 1971 Chevrolet Impala is newer by 20 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 4,092 cc (6 cylinders), 1971 Chevrolet Impala is equipped with a bigger engine. In terms of performance, 1971 Chevrolet Impala (110 HP @ 3800 RPM) has 19 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1971 Chevrolet Impala should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1971 Chevrolet Impala (256 Nm) has 52 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1971 Chevrolet Impala 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 | 1971 Chevrolet Impala | |
| Make | Alvis | Chevrolet |
| Model | TB 21 | Impala |
| Year Released | 1951 | 1971 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4092 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 91 HP | 110 HP |
| Engine RPM | 4000 RPM | 3800 RPM |
| Torque | 204 Nm | 256 Nm |
| Engine Bore Size | 84 mm | 98.2 mm |
| Engine Stroke Size | 90 mm | 89.6 mm |
| Engine Compression Ratio | 7.1:1 | 8.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5600 mm |
| Vehicle Width | 1680 mm | 2030 mm |
| Wheelbase Size | 2750 mm | 3100 mm |
