2004 BMW 645 vs. 2008 BMW 330
To start off, 2008 BMW 330 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 BMW 645. In addition, the cost of maintenance, including insurance, on 2004 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 645 is equipped with a bigger engine. In terms of performance, 2004 BMW 645 (328 HP @ 6100 RPM) has 100 more horse power than 2008 BMW 330. (228 HP @ 5900 RPM). In normal driving conditions, 2004 BMW 645 should accelerate faster than 2008 BMW 330. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 645 weights approximately 10 kg more than 2008 BMW 330. 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 645 (450 Nm @ 3600 RPM) has 150 more torque (in Nm) than 2008 BMW 330. (300 Nm @ 3500 RPM). This means 2004 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 330.
Compare all specifications:
| 2004 BMW 645 | 2008 BMW 330 | |
| Make | BMW | BMW |
| Model | 645 | 330 |
| Year Released | 2004 | 2008 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 228 HP |
| Engine RPM | 6100 RPM | 5900 RPM |
| Torque | 450 Nm | 300 Nm |
| Torque RPM | 3600 RPM | 3500 RPM |
| Engine Bore Size | 92 mm | 84 mm |
| Engine Stroke Size | 82.7 mm | 89.6 mm |
| Engine Compression Ratio | 10.0:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 247 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 6.9 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1690 kg | 1680 kg |
| Vehicle Length | 4830 mm | 4490 mm |
| Vehicle Width | 1860 mm | 1760 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 2830 mm | 2730 mm |
| Fuel Consumption Overall | 12 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
