1951 Riley RM A vs. 2009 BMW Z4
To start off, 2009 BMW Z4 is newer by 58 year(s). Which means there will be less support and parts availability for 1951 Riley RM A. In addition, the cost of maintenance, including insurance, on 1951 Riley RM A would be higher. At 2,497 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW Z4 weights approximately 110 kg more than 1951 Riley RM A.
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. 2009 BMW Z4 has automatic transmission and 1951 Riley RM A has manual transmission. 1951 Riley RM A will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 BMW Z4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Riley RM A | 2009 BMW Z4 | |
| Make | Riley | BMW |
| Model | RM A | Z4 |
| Year Released | 1951 | 2009 |
| Engine Size | 1495 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 0 HP | 176 HP |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Vehicle Weight | 1235 kg | 1345 kg |
| Vehicle Length | 4560 mm | 4100 mm |
| Vehicle Width | 1620 mm | 1790 mm |
| Vehicle Height | 1550 mm | 1310 mm |
| Wheelbase Size | 2870 mm | 2500 mm |
