2004 BMW 325 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW 325. In addition, the cost of maintenance, including insurance, on 2004 BMW 325 would be higher. At 2,491 cc (6 cylinders), 2004 BMW 325 is equipped with a bigger engine. In terms of performance, 2004 BMW 325 (189 HP @ 7400 RPM) has 51 more horse power than 2007 Opel Astra. (138 HP @ 5600 RPM). In normal driving conditions, 2004 BMW 325 should accelerate faster than 2007 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 325 weights approximately 432 kg more than 2007 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 BMW 325 (237 Nm) has 62 more torque (in Nm) than 2007 Opel Astra. (175 Nm). This means 2004 BMW 325 will have an easier job in driving up hills or pulling heavy equipment than 2007 Opel Astra.
Compare all specifications:
| 2004 BMW 325 | 2007 Opel Astra | |
| Make | BMW | Opel |
| Model | 325 | Astra |
| Year Released | 2004 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2491 cc | 1796 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 138 HP |
| Engine RPM | 7400 RPM | 5600 RPM |
| Torque | 237 Nm | 175 Nm |
| Engine Bore Size | 84 mm | 80.5 mm |
| Engine Stroke Size | 75 mm | 88.2 mm |
| Engine Compression Ratio | 10.5:1 | 10.5:1 |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1710 kg | 1278 kg |
| Vehicle Length | 4480 mm | 4300 mm |
| Vehicle Width | 1750 mm | 1760 mm |
| Vehicle Height | 1440 mm | 1440 mm |
| Wheelbase Size | 2730 mm | 2620 mm |
| Fuel Consumption Highway | 9.1 L/100km | 6.2 L/100km |
| Fuel Consumption City | 12.4 L/100km | 11.3 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 7.3 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
