2007 BMW X5 vs. 2008 Opel Signum
To start off, 2008 Opel Signum is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW X5. In addition, the cost of maintenance, including insurance, on 2007 BMW X5 would be higher. At 4,799 cc (8 cylinders), 2007 BMW X5 is equipped with a bigger engine. In terms of performance, 2007 BMW X5 (350 HP @ 6300 RPM) has 175 more horse power than 2008 Opel Signum. (175 HP @ 4000 RPM). In normal driving conditions, 2007 BMW X5 should accelerate faster than 2008 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X5 weights approximately 530 kg more than 2008 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Opel Signum. In wet, icy, snow, or gravel driving conditions, 2007 BMW X5 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, 2007 BMW X5 (475 Nm @ 3400 RPM) has 105 more torque (in Nm) than 2008 Opel Signum. (370 Nm @ 1900 RPM). This means 2007 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2008 Opel Signum. 2007 BMW X5 has automatic transmission and 2008 Opel Signum has manual transmission. 2008 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW X5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW X5 | 2008 Opel Signum | |
| Make | BMW | Opel |
| Model | X5 | Signum |
| Year Released | 2007 | 2008 |
| Body Type | SUV | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 2957 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 175 HP |
| Engine RPM | 6300 RPM | 4000 RPM |
| Torque | 475 Nm | 370 Nm |
| Torque RPM | 3400 RPM | 1900 RPM |
| Engine Compression Ratio | 10.5:1 | 18.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 237 km/hour | 221 km/hour |
| Acceleration 0-100mph | 6.5 seconds | 9.4 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 2200 kg | 1670 kg |
| Vehicle Length | 4670 mm | 4640 mm |
| Vehicle Width | 1940 mm | 1800 mm |
| Vehicle Height | 1740 mm | 1470 mm |
| Wheelbase Size | 2940 mm | 2840 mm |
| Fuel Consumption Overall | 12.5 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 85 L | 60 L |
