2005 BMW 645 vs. 2009 Citroen C4
To start off, 2009 Citroen C4 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 BMW 645. In addition, the cost of maintenance, including insurance, on 2005 BMW 645 would be higher. At 4,390 cc (8 cylinders), 2005 BMW 645 is equipped with a bigger engine. In terms of performance, 2005 BMW 645 (338 HP @ 6100 RPM) has 200 more horse power than 2009 Citroen C4. (138 HP @ 6000 RPM). In normal driving conditions, 2005 BMW 645 should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 645 weights approximately 80 kg more than 2009 Citroen C4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 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 2005 BMW 645. However, in wet, icy, snow, or gravel driving conditions, 2009 Citroen C4, 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, 2005 BMW 645 (439 Nm @ 3600 RPM) has 239 more torque (in Nm) than 2009 Citroen C4. (200 Nm @ 4000 RPM). This means 2005 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2005 BMW 645 | 2009 Citroen C4 | |
| Make | BMW | Citroen |
| Model | 645 | C4 |
| Year Released | 2005 | 2009 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 4390 cc | 1997 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 138 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 439 Nm | 200 Nm |
| Torque RPM | 3600 RPM | 4000 RPM |
| Engine Bore Size | 92 mm | 85 mm |
| Engine Stroke Size | 83 mm | 88 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 195 km/hour |
| Acceleration 0-100mph | 5.6 seconds | 12.6 seconds |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1715 kg | 1635 kg |
| Vehicle Length | 4830 mm | 4590 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1380 mm | 1630 mm |
| Wheelbase Size | 2790 mm | 2730 mm |
| Fuel Consumption Overall | 11.8 L/100km | 8.2 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
