2004 Opel Signum vs. 1966 Porsche 911
To start off, 2004 Opel Signum is newer by 38 year(s). Which means there will be less support and parts availability for 1966 Porsche 911. In addition, the cost of maintenance, including insurance, on 1966 Porsche 911 would be higher. At 1,995 cc (4 cylinders), 2004 Opel Signum is equipped with a bigger engine. In terms of performance, 2004 Opel Signum (173 HP @ 5500 RPM) has 13 more horse power than 1966 Porsche 911. (160 HP @ 6600 RPM). In normal driving conditions, 2004 Opel Signum should accelerate faster than 1966 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2004 Opel Signum weights approximately 498 kg more than 1966 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1966 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 1966 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Opel Signum (265 Nm @ 2500 RPM) has 86 more torque (in Nm) than 1966 Porsche 911. (179 Nm @ 5200 RPM). This means 2004 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1966 Porsche 911.
Compare all specifications:
| 2004 Opel Signum | 1966 Porsche 911 | |
| Make | Opel | Porsche |
| Model | Signum | 911 |
| Year Released | 2004 | 1966 |
| Body Type | Hatchback | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1995 cc | 1991 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 173 HP | 160 HP |
| Engine RPM | 5500 RPM | 6600 RPM |
| Torque | 265 Nm | 179 Nm |
| Torque RPM | 2500 RPM | 5200 RPM |
| Engine Compression Ratio | 9.5:1 | 9.8:1 |
| Top Speed | 220 km/hour | 215 km/hour |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1560 kg | 1062 kg |
| Vehicle Length | 4640 mm | 4170 mm |
| Vehicle Width | 1800 mm | 1620 mm |
| Vehicle Height | 1470 mm | 1330 mm |
| Wheelbase Size | 2840 mm | 2220 mm |
| Fuel Tank Capacity | 60 L | 61 L |
