1953 Alvis TB 21 vs. 1978 Fiat Mirafiori
To start off, 1978 Fiat Mirafiori is newer by 25 year(s). Which means there will be less support and parts availability for 1953 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1953 Alvis TB 21 would be higher. At 2,993 cc (6 cylinders), 1953 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1978 Fiat Mirafiori (115 HP @ 5800 RPM) has 23 more horse power than 1953 Alvis TB 21. (92 HP @ 4000 RPM) In normal driving conditions, 1978 Fiat Mirafiori should accelerate faster than 1953 Alvis TB 21.
Let's talk about torque, 1953 Alvis TB 21 (204 Nm @ 2200 RPM) has 37 more torque (in Nm) than 1978 Fiat Mirafiori. (167 Nm @ 3600 RPM). This means 1953 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1978 Fiat Mirafiori.
Compare all specifications:
| 1953 Alvis TB 21 | 1978 Fiat Mirafiori | |
| Make | Alvis | Fiat |
| Model | TB 21 | Mirafiori |
| Year Released | 1953 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1993 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 92 HP | 115 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 204 Nm | 167 Nm |
| Torque RPM | 2200 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 90 mm |
| Engine Compression Ratio | 7.1:1 | 8.9:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4240 mm |
| Vehicle Width | 1680 mm | 1670 mm |
| Wheelbase Size | 2750 mm | 2450 mm |
