2008 Opel Signum vs. 1986 Porsche 928
To start off, 2008 Opel Signum is newer by 22 year(s). Which means there will be less support and parts availability for 1986 Porsche 928. In addition, the cost of maintenance, including insurance, on 1986 Porsche 928 would be higher. At 4,664 cc (8 cylinders), 1986 Porsche 928 is equipped with a bigger engine. In terms of performance, 1986 Porsche 928 (306 HP @ 5900 RPM) has 153 more horse power than 2008 Opel Signum. (153 HP @ 5600 RPM) In normal driving conditions, 1986 Porsche 928 should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1986 Porsche 928 weights approximately 1 kg more than 2008 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1986 Porsche 928 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 1986 Porsche 928. 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, 1986 Porsche 928 (408 Nm @ 4100 RPM) has 188 more torque (in Nm) than 2008 Opel Signum. (220 Nm @ 3800 RPM). This means 1986 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Signum.
Compare all specifications:
| 2008 Opel Signum | 1986 Porsche 928 | |
| Make | Opel | Porsche |
| Model | Signum | 928 |
| Year Released | 2008 | 1986 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2197 cc | 4664 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 153 HP | 306 HP |
| Engine RPM | 5600 RPM | 5900 RPM |
| Torque | 220 Nm | 408 Nm |
| Torque RPM | 3800 RPM | 4100 RPM |
| Engine Bore Size | 86 mm | 97 mm |
| Engine Stroke Size | 94.6 mm | 78.9 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1535 kg | 1536 kg |
| Vehicle Length | 4640 mm | 4450 mm |
| Vehicle Width | 1800 mm | 1840 mm |
| Vehicle Height | 1470 mm | 1290 mm |
| Wheelbase Size | 2840 mm | 2510 mm |
| Fuel Tank Capacity | 60 L | 76 L |
