1978 BMW 730 vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 27 year(s). Which means there will be less support and parts availability for 1978 BMW 730. In addition, the cost of maintenance, including insurance, on 1978 BMW 730 would be higher. At 3,174 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (208 HP @ 6000 RPM) has 23 more horse power than 1978 BMW 730. (185 HP @ 5800 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 1978 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 100 kg more than 1978 BMW 730. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1978 BMW 730 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 1978 BMW 730. 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 (300 Nm @ 4000 RPM) has 70 more torque (in Nm) than 1978 BMW 730. (230 Nm @ 4000 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1978 BMW 730.
Compare all specifications:
1978 BMW 730 | 2005 Opel Signum | |
Make | BMW | Opel |
Model | 730 | Signum |
Year Released | 1978 | 2005 |
Body Type | Sedan | Hatchback |
Engine Position | Front | Front |
Engine Size | 2788 cc | 3174 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 185 HP | 208 HP |
Engine RPM | 5800 RPM | 6000 RPM |
Torque | 230 Nm | 300 Nm |
Torque RPM | 4000 RPM | 4000 RPM |
Engine Compression Ratio | 10.0:1 | 10.0:1 |
Fuel Type | Gasoline | Gasoline - Premium |
Drive Type | Rear | Front |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 5 seats |
Number of Doors | 4 doors | 5 doors |
Vehicle Weight | 1510 kg | 1610 kg |
Vehicle Length | 4870 mm | 4640 mm |
Vehicle Width | 1810 mm | 1800 mm |
Vehicle Height | 1440 mm | 1470 mm |
Wheelbase Size | 2810 mm | 2840 mm |