1978 Alfa Romeo Giulietta vs. 1951 Alvis TB 21
To start off, 1978 Alfa Romeo Giulietta is newer by 27 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, 1978 Alfa Romeo Giulietta (108 HP @ 5600 RPM) has 17 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM). In normal driving conditions, 1978 Alfa Romeo Giulietta should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 61 more torque (in Nm) than 1978 Alfa Romeo Giulietta. (143 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1978 Alfa Romeo Giulietta.
Compare all specifications:
| 1978 Alfa Romeo Giulietta | 1951 Alvis TB 21 | |
| Make | Alfa Romeo | Alvis |
| Model | Giulietta | TB 21 |
| Year Released | 1978 | 1951 |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 2993 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 108 HP | 91 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 143 Nm | 204 Nm |
| Engine Bore Size | 78 mm | 84 mm |
| Engine Stroke Size | 82 mm | 90 mm |
| Engine Compression Ratio | 9.0:1 | 7.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4220 mm | 4430 mm |
| Vehicle Width | 1660 mm | 1680 mm |
| Wheelbase Size | 2460 mm | 2750 mm |
