2006 BMW X5 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 7 year(s). Which means there will be less support and parts availability for 2006 BMW X5. In addition, the cost of maintenance, including insurance, on 2006 BMW X5 would be higher. At 4,398 cc (8 cylinders), 2006 BMW X5 is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (318 HP @ 6000 RPM) has 2 more horse power than 2006 BMW X5. (316 HP @ 6100 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2006 BMW X5. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW X5 weights approximately 380 kg more than 2013 BMW 6 series.
Because 2006 BMW X5 is four wheel drive (4WD), it will have significant more traction and grip than 2013 BMW 6 series. In wet, icy, snow, or gravel driving conditions, 2006 BMW X5 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 (450 Nm @ 4500 RPM) has 10 more torque (in Nm) than 2006 BMW X5. (440 Nm @ 3700 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X5.
Compare all specifications:
| 2006 BMW X5 | 2013 BMW 6 series | |
| Make | BMW | BMW |
| Model | X5 | 6 series |
| Year Released | 2006 | 2013 |
| Body Type | SUV | Coupe |
| 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 | 316 HP | 318 HP |
| Engine RPM | 6100 RPM | 6000 RPM |
| Torque | 440 Nm | 450 Nm |
| Torque RPM | 3700 RPM | 4500 RPM |
| Engine Bore Size | 92 mm | 89 mm |
| Engine Stroke Size | 82.7 mm | 89 mm |
| Engine Compression Ratio | 10.0:1 | 10.2 :1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 210 km/hour | 250 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 2195 kg | 1815 kg |
| Vehicle Length | 4670 mm | 4894 mm |
| Vehicle Width | 1880 mm | 1894 mm |
| Vehicle Height | 1710 mm | 1369 mm |
| Wheelbase Size | 2830 mm | 2855 mm |
| Fuel Tank Capacity | 93 L | 70 L |
