1951 Alvis TB 21 vs. 1991 Rolls-Royce Silver Spirit
To start off, 1991 Rolls-Royce Silver Spirit is newer by 40 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 6,750 cc (8 cylinders), 1991 Rolls-Royce Silver Spirit is equipped with a bigger engine. In terms of performance, 1991 Rolls-Royce Silver Spirit (208 HP @ 3900 RPM) has 117 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1991 Rolls-Royce Silver Spirit should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1991 Rolls-Royce Silver Spirit (403 Nm) has 199 more torque (in Nm) than 1951 Alvis TB 21. (204 Nm). This means 1991 Rolls-Royce Silver Spirit 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 | 1991 Rolls-Royce Silver Spirit | |
| Make | Alvis | Rolls-Royce |
| Model | TB 21 | Silver Spirit |
| Year Released | 1951 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 6750 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 91 HP | 208 HP |
| Engine RPM | 4000 RPM | 3900 RPM |
| Torque | 204 Nm | 403 Nm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 5280 mm |
| Vehicle Width | 1680 mm | 1890 mm |
| Wheelbase Size | 2750 mm | 3070 mm |
