2008 Opel Signum vs. 1958 Riley One-Point-Five
To start off, 2008 Opel Signum is newer by 50 year(s). Which means there will be less support and parts availability for 1958 Riley One-Point-Five. In addition, the cost of maintenance, including insurance, on 1958 Riley One-Point-Five would be higher. At 2,197 cc (4 cylinders), 2008 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 Opel Signum (153 HP @ 5600 RPM) has 91 more horse power than 1958 Riley One-Point-Five. (62 HP @ 4500 RPM). In normal driving conditions, 2008 Opel Signum should accelerate faster than 1958 Riley One-Point-Five. With that said, vehicle weight also plays an important factor in acceleration. 2008 Opel Signum weights approximately 600 kg more than 1958 Riley One-Point-Five. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1958 Riley One-Point-Five 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 1958 Riley One-Point-Five. 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 (220 Nm @ 3800 RPM) has 108 more torque (in Nm) than 1958 Riley One-Point-Five. (112 Nm @ 3000 RPM). This means 2008 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1958 Riley One-Point-Five.
Compare all specifications:
| 2008 Opel Signum | 1958 Riley One-Point-Five | |
| Make | Opel | Riley |
| Model | Signum | One-Point-Five |
| Year Released | 2008 | 1958 |
| Engine Position | Front | Front |
| Engine Size | 2197 cc | 1489 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 153 HP | 62 HP |
| Engine RPM | 5600 RPM | 4500 RPM |
| Torque | 220 Nm | 112 Nm |
| Torque RPM | 3800 RPM | 3000 RPM |
| Engine Bore Size | 86 mm | 73 mm |
| Engine Stroke Size | 94.6 mm | 88.9 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1535 kg | 935 kg |
| Vehicle Length | 4640 mm | 3890 mm |
| Vehicle Width | 1800 mm | 1560 mm |
| Vehicle Height | 1470 mm | 1530 mm |
| Wheelbase Size | 2840 mm | 2190 mm |
