1987 BMW 730 vs. 2000 Opel Signum
To start off, 2000 Opel Signum is newer by 13 year(s). Which means there will be less support and parts availability for 1987 BMW 730. In addition, the cost of maintenance, including insurance, on 1987 BMW 730 would be higher. At 2,986 cc (6 cylinders), 1987 BMW 730 is equipped with a bigger engine. In terms of performance, 1987 BMW 730 (181 HP @ 5800 RPM) has 61 more horse power than 2000 Opel Signum. (120 HP @ 6000 RPM). In normal driving conditions, 1987 BMW 730 should accelerate faster than 2000 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1987 BMW 730 weights approximately 122 kg more than 2000 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1987 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 1987 BMW 730. However, in wet, icy, snow, or gravel driving conditions, 2000 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, 1987 BMW 730 (260 Nm @ 4000 RPM) has 93 more torque (in Nm) than 2000 Opel Signum. (167 Nm @ 3800 RPM). This means 1987 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2000 Opel Signum.
Compare all specifications:
| 1987 BMW 730 | 2000 Opel Signum | |
| Make | BMW | Opel |
| Model | 730 | Signum |
| Year Released | 1987 | 2000 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 2986 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 181 HP | 120 HP |
| Engine RPM | 5800 RPM | 6000 RPM |
| Torque | 260 Nm | 167 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Compression Ratio | 9.0:1 | 10.5:1 |
| 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 | 1602 kg | 1480 kg |
| Vehicle Length | 4920 mm | 4640 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1420 mm | 1470 mm |
| Wheelbase Size | 2840 mm | 2640 mm |
| Fuel Tank Capacity | 90 L | 60 L |
