1951 Alvis TB 21 vs. 2008 Cadillac SRX
To start off, 2008 Cadillac SRX is newer by 57 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 4,565 cc (8 cylinders), 2008 Cadillac SRX is equipped with a bigger engine. In terms of performance, 2008 Cadillac SRX (320 HP @ 6400 RPM) has 229 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2008 Cadillac SRX should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 2008 Cadillac SRX (427 Nm) has 223 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 2008 Cadillac SRX 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 | 2008 Cadillac SRX | |
| Make | Alvis | Cadillac |
| Model | TB 21 | SRX |
| Year Released | 1951 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4565 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 320 HP |
| Engine RPM | 4000 RPM | 6400 RPM |
| Torque | 204 Nm | 427 Nm |
| Engine Compression Ratio | 7.1:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 4960 mm |
| Vehicle Width | 1680 mm | 1850 mm |
| Wheelbase Size | 2750 mm | 2960 mm |
