2012 BMW X6 vs. 2009 BMW 523
To start off, 2012 BMW X6 is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW 523. In addition, the cost of maintenance, including insurance, on 2009 BMW 523 would be higher. At 2,993 cc (6 cylinders), 2012 BMW X6 is equipped with a bigger engine. In terms of performance, 2012 BMW X6 (304 HP @ 440 RPM) has 129 more horse power than 2009 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 2012 BMW X6 should accelerate faster than 2009 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW X6 weights approximately 620 kg more than 2009 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 BMW X6 is all wheel drive (AWD), it will have significant more traction and grip than 2009 BMW 523. In wet, icy, snow, or gravel driving conditions, 2012 BMW X6 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, 2012 BMW X6 (600 Nm @ 1500 RPM) has 370 more torque (in Nm) than 2009 BMW 523. (230 Nm @ 3500 RPM). This means 2012 BMW X6 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 523.
Compare all specifications:
| 2012 BMW X6 | 2009 BMW 523 | |
| Make | BMW | BMW |
| Model | X6 | 523 |
| Year Released | 2012 | 2009 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 304 HP | 175 HP |
| Engine RPM | 440 RPM | 5800 RPM |
| Torque | 600 Nm | 230 Nm |
| Torque RPM | 1500 RPM | 3500 RPM |
| Engine Bore Size | 90 mm | 82.1 mm |
| Engine Stroke Size | 84 mm | 78.8 mm |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 6.5 seconds | 8.5 seconds |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 2185 kg | 1565 kg |
| Vehicle Length | 4877 mm | 4850 mm |
| Vehicle Width | 1983 mm | 1850 mm |
| Vehicle Height | 1690 mm | 1470 mm |
| Wheelbase Size | 2933 mm | 2890 mm |
| Fuel Consumption Overall | 7.5 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 85 L | 70 L |
