2009 BMW X3 vs. 2007 BMW 523
To start off, 2009 BMW X3 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 523. In addition, the cost of maintenance, including insurance, on 2007 BMW 523 would be higher. At 2,497 cc (6 cylinders), 2007 BMW 523 is equipped with a bigger engine. In terms of performance, 2007 BMW 523 (175 HP) has 27 more horse power than 2009 BMW X3. (148 HP) In normal driving conditions, 2007 BMW 523 should accelerate faster than 2009 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW X3 weights approximately 376 kg more than 2007 BMW 523.
Because 2009 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 523. In wet, icy, snow, or gravel driving conditions, 2009 BMW X3 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, 2007 BMW 523 (230 Nm @ 3500 RPM) has 30 more torque (in Nm) than 2009 BMW X3. (200 Nm @ 3750 RPM). This means 2007 BMW 523 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW X3.
Compare all specifications:
| 2009 BMW X3 | 2007 BMW 523 | |
| Make | BMW | BMW |
| Model | X3 | 523 |
| Year Released | 2009 | 2007 |
| Body Type | SUV | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 148 HP | 175 HP |
| Torque | 200 Nm | 230 Nm |
| Torque RPM | 3750 RPM | 3500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 198 km/hour | 227 km/hour |
| Acceleration 0-100mph | 11.5 seconds | 9.1 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1656 kg | 1280 kg |
| Vehicle Length | 4570 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1680 mm | 1500 mm |
| Wheelbase Size | 2800 mm | 2840 mm |
| Fuel Consumption Overall | 9.3 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 67 L | 70 L |
