2007 BMW M6 vs. 2003 Opel Signum
To start off, 2007 BMW M6 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Opel Signum. In addition, the cost of maintenance, including insurance, on 2003 Opel Signum would be higher. At 4,999 cc (10 cylinders), 2007 BMW M6 is equipped with a bigger engine. In terms of performance, 2007 BMW M6 (500 HP @ 7750 RPM) has 293 more horse power than 2003 Opel Signum. (207 HP @ 6200 RPM). In normal driving conditions, 2007 BMW M6 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M6 weights approximately 327 kg more than 2003 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 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 2007 BMW M6. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2007 BMW M6 (519 Nm @ 6100 RPM) has 219 more torque (in Nm) than 2003 Opel Signum. (300 Nm @ 4000 RPM). This means 2007 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum. 2003 Opel Signum has automatic transmission and 2007 BMW M6 has manual transmission. 2007 BMW M6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW M6 | 2003 Opel Signum | |
| Make | BMW | Opel |
| Model | M6 | Signum |
| Year Released | 2007 | 2003 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4999 cc | 3173 cc |
| Engine Cylinders | 10 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 500 HP | 207 HP |
| Engine RPM | 7750 RPM | 6200 RPM |
| Torque | 519 Nm | 300 Nm |
| Torque RPM | 6100 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 87.5 mm |
| Engine Stroke Size | 75.2 mm | 88 mm |
| Engine Compression Ratio | 12.0:1 | 10.0:1 |
| Top Speed | 249 km/hour | 235 km/hour |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1613 kg |
| Vehicle Length | 4880 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2790 mm | 2840 mm |
| Fuel Consumption Highway | 12.5 L/100km | 7.8 L/100km |
| Fuel Consumption City | 19.8 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 17 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
