1964 AC Cobra vs. 1952 Alvis TB 21
To start off, 1964 AC Cobra is newer by 12 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 4,737 cc (8 cylinders), 1964 AC Cobra is equipped with a bigger engine. In terms of performance, 1964 AC Cobra (267 HP @ 6000 RPM) has 176 more horse power than 1952 Alvis TB 21. (91 HP @ 4000 RPM). In normal driving conditions, 1964 AC Cobra should accelerate faster than 1952 Alvis TB 21.
Let's talk about torque, 1964 AC Cobra (426 Nm @ 3400 RPM) has 222 more torque (in Nm) than 1952 Alvis TB 21. (204 Nm @ 2200 RPM). This means 1964 AC Cobra will have an easier job in driving up hills or pulling heavy equipment than 1952 Alvis TB 21.
Compare all specifications:
| 1964 AC Cobra | 1952 Alvis TB 21 | |
| Make | AC | Alvis |
| Model | Cobra | TB 21 |
| Year Released | 1964 | 1952 |
| Engine Position | Front | Front |
| Engine Size | 4737 cc | 2992 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 267 HP | 91 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 426 Nm | 204 Nm |
| Torque RPM | 3400 RPM | 2200 RPM |
| Engine Bore Size | 101.7 mm | 84 mm |
| Engine Stroke Size | 72.9 mm | 90 mm |
| Engine Compression Ratio | 9.0:1 | 7.1:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Vehicle Length | 3850 mm | 4430 mm |
| Vehicle Width | 1560 mm | 1680 mm |
| Wheelbase Size | 2290 mm | 2750 mm |
