2005 Citroen C4 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Citroen C4. In addition, the cost of maintenance, including insurance, on 2005 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 2005 Citroen C4. (138 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2005 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 810 kg more than 2005 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 2005 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 539 more torque (in Nm) than 2005 Citroen C4. (110 Nm). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2005 Citroen C4.
Compare all specifications:
| 2005 Citroen C4 | 2013 BMW 6 series | |
| Make | Citroen | BMW |
| Model | C4 | 6 series |
| Year Released | 2005 | 2013 |
| Body Type | Hatchback | Coupe |
| 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 | 110 Nm | 649 Nm |
| Engine Compression Ratio | 11.0:1 | 10.0 :1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | 8-speed automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1279 kg | 2089 kg |
| Vehicle Length | 4270 mm | 5009 mm |
| Vehicle Width | 1780 mm | 2081 mm |
| Vehicle Height | 1460 mm | 1392 mm |
| Wheelbase Size | 2610 mm | 2968 mm |
| Fuel Tank Capacity | 60 L | 70 L |
