1949 AC 2-Litre vs. 1949 Armstrong Siddeley Whitley
To start off, both 1949 AC 2-Litre and 1949 Armstrong Siddeley Whitley were released in the same year (1949). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 2,309 cc (6 cylinders), 1949 Armstrong Siddeley Whitley is equipped with a bigger engine. In terms of performance, 1949 AC 2-Litre (76 HP @ 4500 RPM) has 1 more horse power than 1949 Armstrong Siddeley Whitley. (75 HP @ 4200 RPM). In normal driving conditions, 1949 AC 2-Litre should accelerate faster than 1949 Armstrong Siddeley Whitley. With that said, vehicle weight also plays an important factor in acceleration. 1949 Armstrong Siddeley Whitley weights approximately 110 kg more than 1949 AC 2-Litre.
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, 1949 Armstrong Siddeley Whitley (145 Nm @ 3000 RPM) has 9 more torque (in Nm) than 1949 AC 2-Litre. (136 Nm @ 2500 RPM). This means 1949 Armstrong Siddeley Whitley will have an easier job in driving up hills or pulling heavy equipment than 1949 AC 2-Litre.
Compare all specifications:
| 1949 AC 2-Litre | 1949 Armstrong Siddeley Whitley | |
| Make | AC | Armstrong Siddeley |
| Model | 2-Litre | Whitley |
| Year Released | 1949 | 1949 |
| Engine Position | Front | Front |
| Engine Size | 1991 cc | 2309 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 76 HP | 75 HP |
| Engine RPM | 4500 RPM | 4200 RPM |
| Torque | 136 Nm | 145 Nm |
| Torque RPM | 2500 RPM | 3000 RPM |
| Engine Bore Size | 65 mm | 70 mm |
| Engine Stroke Size | 100 mm | 100 mm |
| Engine Compression Ratio | 6.8:1 | 6.5:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1320 kg | 1430 kg |
| Vehicle Length | 4680 mm | 4710 mm |
| Vehicle Width | 1710 mm | 1730 mm |
| Vehicle Height | 1560 mm | 1610 mm |
| Wheelbase Size | 2980 mm | 2930 mm |
