2007 BMW 523 vs. 2008 BMW X3
To start off, 2008 BMW X3 is newer by 1 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 2,996 cc (6 cylinders), 2008 BMW X3 is equipped with a bigger engine. In terms of performance, 2008 BMW X3 (260 HP @ 6600 RPM) has 85 more horse power than 2007 BMW 523. (175 HP @ 5800 RPM) In normal driving conditions, 2008 BMW X3 should accelerate faster than 2007 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW X3 weights approximately 318 kg more than 2007 BMW 523. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2008 BMW X3 (315 Nm @ 2750 RPM) has 85 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 2008 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 2007 BMW 523 | 2008 BMW X3 | |
| Make | BMW | BMW |
| Model | 523 | X3 |
| Year Released | 2007 | 2008 |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 260 HP |
| Engine RPM | 5800 RPM | 6600 RPM |
| Torque | 230 Nm | 315 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 82 mm | 85 mm |
| Engine Stroke Size | 78.8 mm | 88 mm |
| Engine Compression Ratio | 11.0:1 | 10.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 230 km/hour | 210 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 7.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1500 kg | 1818 kg |
| Vehicle Length | 4850 mm | 4570 mm |
| Vehicle Width | 1470 mm | 1680 mm |
| Vehicle Height | 1850 mm | 1860 mm |
| Wheelbase Size | 2890 mm | 2800 mm |
| Fuel Consumption Overall | 9.5 L/100km | 10.3 L/100km |
| Fuel Tank Capacity | 70 L | 67 L |
