1951 Alvis TB 21 vs. 1999 Lexus IS
To start off, 1999 Lexus IS is newer by 48 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, 1999 Lexus IS (153 HP @ 6200 RPM) has 62 more horse power than 1951 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 1999 Lexus IS should accelerate faster than 1951 Alvis TB 21.
Let's talk about torque, 1951 Alvis TB 21 (204 Nm) has 9 more torque (in Nm) than 1999 Lexus IS. (195 Nm). This means 1951 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 1999 Lexus IS.
Compare all specifications:
| 1951 Alvis TB 21 | 1999 Lexus IS | |
| Make | Alvis | Lexus |
| Model | TB 21 | IS |
| Year Released | 1951 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1988 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 153 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 204 Nm | 195 Nm |
| Engine Bore Size | 84 mm | 75 mm |
| Engine Stroke Size | 90 mm | 75 mm |
| Engine Compression Ratio | 7.1:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Length | 4430 mm | 4410 mm |
| Vehicle Width | 1680 mm | 1730 mm |
| Wheelbase Size | 2750 mm | 2680 mm |
