2005 BMW 525 vs. 2007 Opel Speedster
To start off, 2007 Opel Speedster is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 525. In addition, the cost of maintenance, including insurance, on 2005 BMW 525 would be higher. At 2,496 cc (6 cylinders), 2005 BMW 525 is equipped with a bigger engine. In terms of performance, 2005 BMW 525 (225 HP @ 6500 RPM) has 28 more horse power than 2007 Opel Speedster. (197 HP @ 5500 RPM). In normal driving conditions, 2005 BMW 525 should accelerate faster than 2007 Opel Speedster. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 525 weights approximately 755 kg more than 2007 Opel Speedster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 BMW 525 is four wheel drive (4WD), it will have significant more traction and grip than 2007 Opel Speedster. In wet, icy, snow, or gravel driving conditions, 2005 BMW 525 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 250 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.
Compare all specifications:
| 2005 BMW 525 | 2007 Opel Speedster | |
| Make | BMW | Opel |
| Model | 525 | Speedster |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 2496 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 225 HP | 197 HP |
| Engine RPM | 6500 RPM | 5500 RPM |
| Torque | 250 Nm | 250 Nm |
| Torque RPM | 2750 RPM | 1950 RPM |
| Engine Bore Size | 82 mm | 86 mm |
| Engine Stroke Size | 78.8 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 8.8:1 |
| Top Speed | 232 km/hour | 243 km/hour |
| Acceleration 0-100mph | 8.5 seconds | 4.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1760 kg | 1005 kg |
| Vehicle Length | 4850 mm | 3790 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1500 mm | 1120 mm |
| Wheelbase Size | 2890 mm | 2340 mm |
| Fuel Consumption Overall | 9.6 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 70 L | 36 L |
