2003 BMW 645 vs. 2003 Opel Meriva
To start off, both 2003 BMW 645 and 2003 Opel Meriva were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (321 HP @ 6100 RPM) has 247 more horse power than 2003 Opel Meriva. (74 HP @ 4400 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2003 Opel Meriva. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 465 kg more than 2003 Opel Meriva. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW 645 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 645. However, in wet, icy, snow, or gravel driving conditions, 2003 Opel Meriva, 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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 220 more torque (in Nm) than 2003 Opel Meriva. (230 Nm @ 1800 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2003 Opel Meriva.
Compare all specifications:
| 2003 BMW 645 | 2003 Opel Meriva | |
| Make | BMW | Opel |
| Model | 645 | Meriva |
| Year Released | 2003 | 2003 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 1686 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 321 HP | 74 HP |
| Engine RPM | 6100 RPM | 4400 RPM |
| Torque | 450 Nm | 230 Nm |
| Torque RPM | 3600 RPM | 1800 RPM |
| Engine Bore Size | 92 mm | 79 mm |
| Engine Stroke Size | 82.7 mm | 86 mm |
| Engine Compression Ratio | 10.5:1 | 18.4:1 |
| Top Speed | 250 km/hour | 158 km/hour |
| Acceleration 0-100mph | 6.2 seconds | 17.3 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1895 kg | 1430 kg |
| Vehicle Length | 4830 mm | 4050 mm |
| Vehicle Width | 1860 mm | 1700 mm |
| Vehicle Height | 1380 mm | 1630 mm |
| Wheelbase Size | 2790 mm | 2400 mm |
| Fuel Consumption Overall | 11.5 L/100km | 5.5 L/100km |
| Fuel Tank Capacity | 70 L | 53 L |
