1958 Alfa Romeo 1900 vs. 1951 Alvis TB 21
To start off, 1958 Alfa Romeo 1900 is newer by 7 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 2,993 cc (6 cylinders), 1951 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1958 Alfa Romeo 1900 (114 HP @ 5500 RPM) has 23 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM). In normal driving conditions, 1958 Alfa Romeo 1900 should accelerate faster than 1951 Alvis TB 21.
Compare all specifications:
| 1958 Alfa Romeo 1900 | 1951 Alvis TB 21 | |
| Make | Alfa Romeo | Alvis |
| Model | 1900 | TB 21 |
| Year Released | 1958 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1975 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 114 HP | 91 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 88 mm | 90 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Length | 4410 mm | 4430 mm |
| Vehicle Width | 1640 mm | 1680 mm |
| Wheelbase Size | 2510 mm | 2750 mm |
