1998 Opel Signum vs. 1988 Porsche 928
To start off, 1998 Opel Signum is newer by 10 year(s). Which means there will be less support and parts availability for 1988 Porsche 928. In addition, the cost of maintenance, including insurance, on 1988 Porsche 928 would be higher. At 4,664 cc (8 cylinders), 1988 Porsche 928 is equipped with a bigger engine. In terms of performance, 1988 Porsche 928 (307 HP @ 5900 RPM) has 208 more horse power than 1998 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 1988 Porsche 928 should accelerate faster than 1998 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1998 Opel Signum weights approximately 65 kg more than 1988 Porsche 928.
Because 1988 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 1988 Porsche 928. However, in wet, icy, snow, or gravel driving conditions, 1998 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, 1988 Porsche 928 (408 Nm @ 4100 RPM) has 223 more torque (in Nm) than 1998 Opel Signum. (185 Nm @ 1500 RPM). This means 1988 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Signum.
Compare all specifications:
| 1998 Opel Signum | 1988 Porsche 928 | |
| Make | Opel | Porsche |
| Model | Signum | 928 |
| Year Released | 1998 | 1988 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Front |
| Engine Size | 1909 cc | 4664 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 99 HP | 307 HP |
| Engine RPM | 3120 RPM | 5900 RPM |
| Torque | 185 Nm | 408 Nm |
| Torque RPM | 1500 RPM | 4100 RPM |
| Engine Bore Size | 84 mm | 97 mm |
| Engine Stroke Size | 90 mm | 78.9 mm |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1530 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 |
