2003 Opel Signum vs. 2010 BMW 750
To start off, 2010 BMW 750 is newer by 7 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 4,400 cc (8 cylinders), 2010 BMW 750 is equipped with a bigger engine. In terms of performance, 2010 BMW 750 (400 HP @ 5500 RPM) has 256 more horse power than 2003 Opel Signum. (144 HP @ 6000 RPM) In normal driving conditions, 2010 BMW 750 should accelerate faster than 2003 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2010 BMW 750 weights approximately 419 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 2010 BMW 750 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 2010 BMW 750. 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, 2010 BMW 750 (609 Nm @ 1800 RPM) has 369 more torque (in Nm) than 2003 Opel Signum. (240 Nm @ 3800 RPM). This means 2010 BMW 750 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Signum.
Compare all specifications:
| 2003 Opel Signum | 2010 BMW 750 | |
| Make | Opel | BMW |
| Model | Signum | 750 |
| Year Released | 2003 | 2010 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2198 cc | 4400 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 144 HP | 400 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 240 Nm | 609 Nm |
| Torque RPM | 3800 RPM | 1800 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1686 kg | 2105 kg |
| Vehicle Length | 4640 mm | 5215 mm |
| Vehicle Width | 1800 mm | 1902 mm |
| Vehicle Height | 1470 mm | 1481 mm |
| Wheelbase Size | 2640 mm | 3211 mm |
| Fuel Consumption | 7.2 L/100km | 11.2 L/100km |
| Fuel Consumption City | 12.4 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 58 L | 82 L |
