2003 Opel Signum vs. 1974 Porsche 911
To start off, 2003 Opel Signum is newer by 29 year(s). Which means there will be less support and parts availability for 1974 Porsche 911. In addition, the cost of maintenance, including insurance, on 1974 Porsche 911 would be higher. At 2,687 cc (6 cylinders), 1974 Porsche 911 is equipped with a bigger engine. In terms of performance, 1974 Porsche 911 (173 HP @ 5800 RPM) has 74 more horse power than 2003 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 1974 Porsche 911 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 545 kg more than 1974 Porsche 911.
Because 1974 Porsche 911 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 1974 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 1974 Porsche 911 (240 Nm @ 4000 RPM) has 10 more torque (in Nm) than 2003 Opel Signum. (230 Nm @ 1500 RPM). This means 1974 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 1974 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Signum | 911 |
| Year Released | 2003 | 1974 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1998 cc | 2687 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 99 HP | 173 HP |
| Engine RPM | 3120 RPM | 5800 RPM |
| Torque | 230 Nm | 240 Nm |
| Torque RPM | 1500 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 90.1 mm |
| Engine Stroke Size | 90 mm | 70.4 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1620 kg | 1075 kg |
| Vehicle Length | 4640 mm | 4300 mm |
| Vehicle Width | 1800 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1330 mm |
| Wheelbase Size | 2840 mm | 2270 mm |
| Fuel Tank Capacity | 60 L | 79 L |
