2008 Opel Signum vs. 1957 Riley 1.5
To start off, 2008 Opel Signum is newer by 51 year(s). Which means there will be less support and parts availability for 1957 Riley 1.5. In addition, the cost of maintenance, including insurance, on 1957 Riley 1.5 would be higher. At 1,910 cc (4 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (149 HP @ 4000 RPM) has 86 more horse power than 1957 Riley 1.5. (63 HP @ 5000 RPM). In normal driving conditions, 2008 Opel Signum should accelerate faster than 1957 Riley 1.5. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 678 kg more than 1957 Riley 1.5. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1957 Riley 1.5 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1957 Riley 1.5. However, in wet, icy, snow, or gravel driving conditions, 2008 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 2008 Opel Signum (315 Nm @ 2000 RPM) has 203 more torque (in Nm) than 1957 Riley 1.5. (112 Nm @ 2500 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1957 Riley 1.5.
Compare all specifications:
| 2008 Opel Signum | 1957 Riley 1.5 | |
| Make | Opel | Riley |
| Model | Signum | 1.5 |
| Year Released | 2008 | 1957 |
| Engine Position | Front | Front |
| Engine Size | 1910 cc | 1489 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 149 HP | 63 HP |
| Engine RPM | 4000 RPM | 5000 RPM |
| Torque | 315 Nm | 112 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 82 mm | 73 mm |
| Engine Stroke Size | 90.4 mm | 88.9 mm |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1613 kg | 935 kg |
| Vehicle Length | 4640 mm | 3890 mm |
| Vehicle Width | 1800 mm | 1560 mm |
| Vehicle Height | 1470 mm | 1510 mm |
| Wheelbase Size | 2840 mm | 2190 mm |
| Fuel Tank Capacity | 60 L | 31 L |
