1999 Opel Signum vs. 2009 Saturn Sky
To start off, 2009 Saturn Sky is newer by 10 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 2,384 cc (4 cylinders), 2009 Saturn Sky is equipped with a bigger engine. In terms of performance, 2009 Saturn Sky (171 HP @ 5800 RPM) has 23 more horse power than 1999 Opel Signum. (148 HP @ 4000 RPM) In normal driving conditions, 2009 Saturn Sky should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2009 Saturn Sky weights approximately 258 kg more than 1999 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Saturn Sky 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 2009 Saturn Sky. However, in wet, icy, snow, or gravel driving conditions, 1999 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, 1999 Opel Signum (270 Nm @ 2000 RPM) has 103 more torque (in Nm) than 2009 Saturn Sky. (167 Nm @ 4500 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 2009 Saturn Sky.
Compare all specifications:
| 1999 Opel Signum | 2009 Saturn Sky | |
| Make | Opel | Saturn |
| Model | Signum | Sky |
| Year Released | 1999 | 2009 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1998 cc | 2384 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 148 HP | 171 HP |
| Engine RPM | 4000 RPM | 5800 RPM |
| Torque | 270 Nm | 167 Nm |
| Torque RPM | 2000 RPM | 4500 RPM |
| Engine Compression Ratio | 18.0:1 | 10.4:1 |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1086 kg | 1344 kg |
| Vehicle Width | 1800 mm | 1820 mm |
