1951 Alvis TB 21 vs. 2009 Cadillac STS
To start off, 2009 Cadillac STS is newer by 58 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 3,599 cc (6 cylinders), 2009 Cadillac STS is equipped with a bigger engine. In terms of performance, 2009 Cadillac STS (302 HP @ 6300 RPM) has 211 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2009 Cadillac STS should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2009 Cadillac STS (369 Nm) has 165 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2009 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TB 21.
Compare all specifications:
| 1951 Alvis TB 21 | 2009 Cadillac STS | |
| Make | Alvis | Cadillac |
| Model | TB 21 | STS |
| Year Released | 1951 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3599 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 302 HP |
| Engine RPM | 4000 RPM | 6300 RPM |
| Torque | 204 Nm | 369 Nm |
| Engine Compression Ratio | 7.1:1 | 11.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5000 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Wheelbase Size | 2750 mm | 2960 mm |
