1952 Alvis TB 21 vs. 1999 Alfa Romeo 156
To start off, 1999 Alfa Romeo 156 is newer by 47 year(s). Which means there will be less support and parts availability for 1952 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1952 Alvis TB 21 would be higher. At 2,992 cc (6 cylinders), 1952 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1999 Alfa Romeo 156 (187 HP @ 6300 RPM) has 96 more horse power than 1952 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1999 Alfa Romeo 156 should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 1999 Alfa Romeo 156 (222 Nm @ 5000 RPM) has 18 more torque (in Nm) than 1952 Alvis TB 21. (204 Nm @ 2200 RPM). This means 1999 Alfa Romeo 156 will have an easier job in driving up hills or pulling heavy equipment than 1952 Alvis TB 21.
Compare all specifications:
| 1952 Alvis TB 21 | 1999 Alfa Romeo 156 | |
| Make | Alvis | Alfa Romeo |
| Model | TB 21 | 156 |
| Year Released | 1952 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 187 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 204 Nm | 222 Nm |
| Torque RPM | 2200 RPM | 5000 RPM |
| Engine Bore Size | 84 mm | 88 mm |
| Engine Stroke Size | 90 mm | 68.3 mm |
| Engine Compression Ratio | 7.1:1 | 10.3:1 |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4440 mm |
| Vehicle Width | 1680 mm | 1750 mm |
| Wheelbase Size | 2750 mm | 2600 mm |
