1975 Porsche 930 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 30 year(s). Which means there will be less support and parts availability for 1975 Porsche 930. In addition, the cost of maintenance, including insurance, on 1975 Porsche 930 would be higher. At 2,994 cc (6 cylinders), 1975 Porsche 930 is equipped with a bigger engine. In terms of performance, 1975 Porsche 930 (256 HP @ 5500 RPM) has 81 more horse power than 2005 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 1975 Porsche 930 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 530 kg more than 1975 Porsche 930.
Because 1975 Porsche 930 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 1975 Porsche 930. However, in wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Opel Signum (370 Nm @ 1900 RPM) has 20 more torque (in Nm) than 1975 Porsche 930. (350 Nm @ 3000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1975 Porsche 930. 2005 Opel Signum has automatic transmission and 1975 Porsche 930 has manual transmission. 1975 Porsche 930 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1975 Porsche 930 | 2005 Opel Signum | |
| Make | Porsche | Opel |
| Model | 930 | Signum |
| Year Released | 1975 | 2005 |
| Body Type | Coupe | Hatchback |
| Engine Position | Rear | Front |
| Engine Size | 2994 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 256 HP | 175 HP |
| Engine RPM | 5500 RPM | 4000 RPM |
| Torque | 350 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Compression Ratio | 6.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1140 kg | 1670 kg |
| Vehicle Length | 4300 mm | 4640 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1320 mm | 1470 mm |
| Wheelbase Size | 2510 mm | 2620 mm |
