1952 Alvis TB 21 vs. 2009 Daihatsu Sirion
To start off, 2009 Daihatsu Sirion is newer by 57 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 2,992 cc (6 cylinders), 1952 Alvis TB 21 is equipped with a bigger engine. In terms of performance, 1952 Alvis TB 21 (91 HP @ 4000 RPM) has 5 more horse power than 2009 Daihatsu Sirion. (86 HP @ 6000 RPM). In normal driving conditions, 1952 Alvis TB 21 should accelerate faster than 2009 Daihatsu Sirion.
Let's talk about torque, 1952 Alvis TB 21 (204 Nm @ 2200 RPM) has 84 more torque (in Nm) than 2009 Daihatsu Sirion. (120 Nm @ 3200 RPM). This means 1952 Alvis TB 21 will have an easier job in driving up hills or pulling heavy equipment than 2009 Daihatsu Sirion.
Compare all specifications:
| 1952 Alvis TB 21 | 2009 Daihatsu Sirion | |
| Make | Alvis | Daihatsu |
| Model | TB 21 | Sirion |
| Year Released | 1952 | 2009 |
| Engine Position | Front | Front |
| Engine Size | 2992 cc | 1298 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 91 HP | 86 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 120 Nm |
| Torque RPM | 2200 RPM | 3200 RPM |
| Engine Compression Ratio | 7.1:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Length | 4430 mm | 3610 mm |
| Vehicle Width | 1680 mm | 1560 mm |
| Wheelbase Size | 2750 mm | 2440 mm |
