2005 Opel Signum vs. 1988 Porsche 911
To start off, 2005 Opel Signum is newer by 17 year(s). Which means there will be less support and parts availability for 1988 Porsche 911. In addition, the cost of maintenance, including insurance, on 1988 Porsche 911 would be higher. At 3,598 cc (6 cylinders), 1988 Porsche 911 is equipped with a bigger engine. In terms of performance, 1988 Porsche 911 (246 HP @ 6100 RPM) has 147 more horse power than 2005 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 1988 Porsche 911 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 145 kg more than 1988 Porsche 911.
Because 1988 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 1988 Porsche 911 will offer significantly more control. 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 911 (310 Nm @ 4800 RPM) has 80 more torque (in Nm) than 2005 Opel Signum. (230 Nm @ 1500 RPM). This means 1988 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Signum.
Compare all specifications:
| 2005 Opel Signum | 1988 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Signum | 911 |
| Year Released | 2005 | 1988 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1993 cc | 3598 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 99 HP | 246 HP |
| Engine RPM | 3120 RPM | 6100 RPM |
| Torque | 230 Nm | 310 Nm |
| Torque RPM | 1500 RPM | 4800 RPM |
| Engine Bore Size | 84 mm | 100 mm |
| Engine Stroke Size | 90 mm | 76.4 mm |
| Engine Compression Ratio | 18.5:1 | 11.3:1 |
| Top Speed | 185 km/hour | 260 km/hour |
| Acceleration 0-100mph | 14 seconds | 6.2 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1595 kg | 1450 kg |
| Vehicle Length | 4640 mm | 4260 mm |
| Vehicle Width | 1800 mm | 1660 mm |
| Vehicle Height | 1470 mm | 1330 mm |
| Wheelbase Size | 2740 mm | 2270 mm |
| Fuel Tank Capacity | 60 L | 77 L |
