2003 BMW 318 vs. 2007 Opel Astra
To start off, 2007 Opel Astra is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 318. In addition, the cost of maintenance, including insurance, on 2003 BMW 318 would be higher. At 1,998 cc, 2007 Opel Astra is equipped with a bigger engine. In terms of performance, 2007 Opel Astra (197 HP @ 5400 RPM) has 84 more horse power than 2003 BMW 318. (113 HP @ 5500 RPM) In normal driving conditions, 2007 Opel Astra should accelerate faster than 2003 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2007 Opel Astra weights approximately 85 kg more than 2003 BMW 318. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW 318 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 2003 BMW 318. However, in wet, icy, snow, or gravel driving conditions, 2007 Opel Astra, 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, 2007 Opel Astra (262 Nm @ 1950 RPM) has 95 more torque (in Nm) than 2003 BMW 318. (167 Nm @ 3750 RPM). This means 2007 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 318.
Compare all specifications:
| 2003 BMW 318 | 2007 Opel Astra | |
| Make | BMW | Opel |
| Model | 318 | Astra |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 1795 cc | 1998 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 113 HP | 197 HP |
| Engine RPM | 5500 RPM | 5400 RPM |
| Torque | 167 Nm | 262 Nm |
| Torque RPM | 3750 RPM | 1950 RPM |
| Engine Bore Size | 84 mm | 86 mm |
| Engine Stroke Size | 81 mm | 86 mm |
| Engine Compression Ratio | 11.0:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1300 kg | 1385 kg |
| Vehicle Length | 4270 mm | 4300 mm |
| Vehicle Width | 1760 mm | 1760 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2730 mm | 2620 mm |
| Fuel Tank Capacity | 67 L | 52 L |
