1950 Alvis TB 21 vs. 2011 GMC Sierra
To start off, 2011 GMC Sierra is newer by 61 year(s). Which means there will be less support and parts availability for 1950 Alvis TB 21. In addition, the cost of maintenance, including insurance, on 1950 Alvis TB 21 would be higher. At 4,800 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (302 HP @ 5600 RPM) has 211 more horse power than 1950 Alvis TB 21. (91 HP @ 4000 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 1950 Alvis TB 21.
Let's talk about torque, 2011 GMC Sierra (413 Nm) has 209 more torque (in Nm) than 1950 Alvis TB 21. (204 Nm). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1950 Alvis TB 21.
Compare all specifications:
| 1950 Alvis TB 21 | 2011 GMC Sierra | |
| Make | Alvis | GMC |
| Model | TB 21 | Sierra |
| Year Released | 1950 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 4800 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 91 HP | 302 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 204 Nm | 413 Nm |
| Fuel Type | Gasoline | Flex Fuel |
| Vehicle Length | 4430 mm | 5847 mm |
| Vehicle Width | 1680 mm | 2032 mm |
| Wheelbase Size | 2750 mm | 3645 mm |
| Fuel Tank Capacity | 64 L | 98 L |
