1987 BMW M6 vs. 2006 Opel Signum
To start off, 2006 Opel Signum is newer by 19 year(s). Which means there will be less support and parts availability for 1987 BMW M6. In addition, the cost of maintenance, including insurance, on 1987 BMW M6 would be higher. At 3,453 cc (6 cylinders), 1987 BMW M6 is equipped with a bigger engine. In terms of performance, 1987 BMW M6 (282 HP @ 6500 RPM) has 107 more horse power than 2006 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 1987 BMW M6 should accelerate faster than 2006 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2006 Opel Signum weights approximately 165 kg more than 1987 BMW M6.
Because 1987 BMW M6 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 M6. However, in wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Opel Signum (370 Nm @ 1900 RPM) has 36 more torque (in Nm) than 1987 BMW M6. (334 Nm @ 4500 RPM). This means 2006 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1987 BMW M6.
Compare all specifications:
| 1987 BMW M6 | 2006 Opel Signum | |
| Make | BMW | Opel |
| Model | M6 | Signum |
| Year Released | 1987 | 2006 |
| Body Type | Coupe | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3453 cc | 2958 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 282 HP | 175 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 334 Nm | 370 Nm |
| Torque RPM | 4500 RPM | 1900 RPM |
| Engine Bore Size | 93.4 mm | 87.5 mm |
| Engine Stroke Size | 84 mm | 82 mm |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1505 kg | 1670 kg |
| Vehicle Length | 4760 mm | 4640 mm |
| Vehicle Width | 1730 mm | 1800 mm |
| Vehicle Height | 1360 mm | 1470 mm |
| Wheelbase Size | 2630 mm | 2840 mm |
| Fuel Tank Capacity | 70 L | 60 L |
