2004 BMW 745 vs. 1998 Opel Astra
To start off, 2004 BMW 745 is newer by 6 year(s). Which means there will be less support and parts availability for 1998 Opel Astra. In addition, the cost of maintenance, including insurance, on 1998 Opel Astra would be higher. At 4,392 cc (8 cylinders), 2004 BMW 745 is equipped with a bigger engine. In terms of performance, 2004 BMW 745 (310 HP @ 7900 RPM) has 225 more horse power than 1998 Opel Astra. (85 HP @ 4400 RPM). In normal driving conditions, 2004 BMW 745 should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 745 weights approximately 695 kg more than 1998 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 745 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 2004 BMW 745. However, in wet, icy, snow, or gravel driving conditions, 1998 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, 2004 BMW 745 (451 Nm) has 263 more torque (in Nm) than 1998 Opel Astra. (188 Nm). This means 2004 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra.
Compare all specifications:
| 2004 BMW 745 | 1998 Opel Astra | |
| Make | BMW | Opel |
| Model | 745 | Astra |
| Year Released | 2004 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 4392 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 310 HP | 85 HP |
| Engine RPM | 7900 RPM | 4400 RPM |
| Torque | 451 Nm | 188 Nm |
| Engine Bore Size | 92 mm | 84 mm |
| Engine Stroke Size | 83 mm | 90 mm |
| Drive Type | Rear | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1985 kg | 1290 kg |
| Vehicle Length | 5040 mm | 4060 mm |
| Vehicle Width | 1910 mm | 1710 mm |
| Vehicle Height | 1500 mm | 1470 mm |
| Wheelbase Size | 3000 mm | 2620 mm |
| Fuel Tank Capacity | 88 L | 44 L |
