2009 Citroen C4 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 4 year(s). Which means there will be less support and parts availability for 2009 Citroen C4. In addition, the cost of maintenance, including insurance, on 2009 Citroen C4 would be higher. At 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (437 HP @ 5500 RPM) has 299 more horse power than 2009 Citroen C4. (138 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2009 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 646 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 2013 BMW 6 series is all wheel drive (AWD), it will have significant more traction and grip than 2009 Citroen C4. In wet, icy, snow, or gravel driving conditions, 2013 BMW 6 series will offer significantly more control. 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, 2013 BMW 6 series (649 Nm) has 449 more torque (in Nm) than 2009 Citroen C4. (200 Nm). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2009 Citroen C4.
Compare all specifications:
| 2009 Citroen C4 | 2013 BMW 6 series | |
| Make | Citroen | BMW |
| Model | C4 | 6 series |
| Year Released | 2009 | 2013 |
| Body Type | Hatchback | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1997 cc | 4395 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 437 HP |
| Engine RPM | 6000 RPM | 5500 RPM |
| Torque | 200 Nm | 649 Nm |
| Engine Bore Size | 85 mm | 89 mm |
| Engine Stroke Size | 88 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.0 :1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 207 km/hour | 250 km/hour |
| Acceleration 0-100mph | 10.1 seconds | 4.4 seconds |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | 8-speed automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1354 kg | 2000 kg |
| Vehicle Length | 4280 mm | 4896 mm |
| Vehicle Width | 1780 mm | 2081 mm |
| Vehicle Height | 1460 mm | 1369 mm |
| Wheelbase Size | 2610 mm | 2855 mm |
| Fuel Tank Capacity | 60 L | 70 L |
