2005 Opel Signum vs. 2008 BMW 530
To start off, 2008 BMW 530 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Opel Signum. In addition, the cost of maintenance, including insurance, on 2005 Opel Signum would be higher. At 3,174 cc (6 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2008 BMW 530 (254 HP @ 6600 RPM) has 46 more horse power than 2005 Opel Signum. (208 HP @ 6000 RPM) In normal driving conditions, 2008 BMW 530 should accelerate faster than 2005 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 95 kg more than 2008 BMW 530.
Because 2008 BMW 530 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2008 BMW 530 will offer significantly more control. 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, both vehicles can yield 300 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles. 2008 BMW 530 has automatic transmission and 2005 Opel Signum has manual transmission. 2005 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 BMW 530 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Opel Signum | 2008 BMW 530 | |
| Make | Opel | BMW |
| Model | Signum | 530 |
| Year Released | 2005 | 2008 |
| Body Type | Hatchback | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3174 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 208 HP | 254 HP |
| Engine RPM | 6000 RPM | 6600 RPM |
| Torque | 300 Nm | 300 Nm |
| Torque RPM | 4000 RPM | 2500 RPM |
| Engine Compression Ratio | 10.0:1 | 10.7:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 237 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 7 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1610 kg | 1515 kg |
| Vehicle Length | 4640 mm | 4850 mm |
| Vehicle Width | 1800 mm | 1850 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2840 mm | 2840 mm |
| Fuel Consumption Overall | 10.1 L/100km | 10.1 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
