1951 Alvis TA 21 vs. 1948 Triumph Roadster
To start off, 1951 Alvis TA 21 is newer by 3 year(s). Which means there will be less support and parts availability for 1948 Triumph Roadster. In addition, the cost of maintenance, including insurance, on 1948 Triumph Roadster would be higher. At 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 1951 Alvis TA 21 (93 HP @ 4000 RPM) has 31 more horse power than 1948 Triumph Roadster. (62 HP @ 4500 RPM). In normal driving conditions, 1951 Alvis TA 21 should accelerate faster than 1948 Triumph Roadster. With that said, vehicle weight also plays an important factor in acceleration. 1951 Alvis TA 21 weights approximately 296 kg more than 1948 Triumph Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1951 Alvis TA 21 (204 Nm @ 2000 RPM) has 79 more torque (in Nm) than 1948 Triumph Roadster. (125 Nm @ 2000 RPM). This means 1951 Alvis TA 21 will have an easier job in driving up hills or pulling heavy equipment than 1948 Triumph Roadster.
Compare all specifications:
| 1951 Alvis TA 21 | 1948 Triumph Roadster | |
| Make | Alvis | Triumph |
| Model | TA 21 | Roadster |
| Year Released | 1951 | 1948 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 1776 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 93 HP | 62 HP |
| Engine RPM | 4000 RPM | 4500 RPM |
| Torque | 204 Nm | 125 Nm |
| Torque RPM | 2000 RPM | 2000 RPM |
| Engine Bore Size | 84 mm | 73 mm |
| Engine Stroke Size | 90 mm | 106 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1448 kg | 1152 kg |
| Vehicle Length | 4630 mm | 4290 mm |
| Vehicle Width | 1680 mm | 1630 mm |
| Vehicle Height | 1600 mm | 1430 mm |
| Wheelbase Size | 2840 mm | 2550 mm |
