2009 BMW X3 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 BMW X3. In addition, the cost of maintenance, including insurance, on 2009 BMW X3 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 209 more horse power than 2009 BMW X3. (228 HP @ 5900 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2009 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 173 kg more than 2009 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 (651 Nm @ 4500 RPM) has 351 more torque (in Nm) than 2009 BMW X3. (300 Nm @ 3500 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X3.
Compare all specifications:
| 2009 BMW X3 | 2013 BMW 6 series | |
| Make | BMW | BMW |
| Model | X3 | 6 series |
| Year Released | 2009 | 2013 |
| Body Type | SUV | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2979 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 228 HP | 437 HP |
| Engine RPM | 5900 RPM | 5500 RPM |
| Torque | 300 Nm | 651 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Bore Size | 84 mm | 89 mm |
| Engine Stroke Size | 89.6 mm | 89 mm |
| Engine Compression Ratio | 10.0:1 | 10.0 :1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 210 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 4.5 seconds |
| Drive Type | 4WD | AWD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1836 kg | 2009 kg |
| Vehicle Length | 4570 mm | 5009 mm |
| Vehicle Width | 1860 mm | 2081 mm |
| Vehicle Height | 1680 mm | 1392 mm |
| Wheelbase Size | 2800 mm | 2968 mm |
| Fuel Tank Capacity | 67 L | 70 L |
