2006 BMW X3 vs. 2007 BMW M5
To start off, 2007 BMW M5 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW X3. In addition, the cost of maintenance, including insurance, on 2006 BMW X3 would be higher. At 4,999 cc (10 cylinders), 2007 BMW M5 is equipped with a bigger engine. In terms of performance, 2007 BMW M5 (500 HP @ 7750 RPM) has 272 more horse power than 2006 BMW X3. (228 HP @ 5900 RPM) In normal driving conditions, 2007 BMW M5 should accelerate faster than 2006 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M5 weights approximately 395 kg more than 2006 BMW X3. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW M5. In wet, icy, snow, or gravel driving conditions, 2006 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 M5 (520 Nm @ 6100 RPM) has 220 more torque (in Nm) than 2006 BMW X3. (300 Nm @ 3500 RPM). This means 2007 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW X3.
Compare all specifications:
| 2006 BMW X3 | 2007 BMW M5 | |
| Make | BMW | BMW |
| Model | X3 | M5 |
| Year Released | 2006 | 2007 |
| Body Type | SUV | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2977 cc | 4999 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 228 HP | 500 HP |
| Engine RPM | 5900 RPM | 7750 RPM |
| Torque | 300 Nm | 520 Nm |
| Torque RPM | 3500 RPM | 6100 RPM |
| Engine Compression Ratio | 10.2:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Top Speed | 210 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.1 seconds | 4.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1360 kg | 1755 kg |
| Vehicle Length | 4570 mm | 4860 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1680 mm | 1470 mm |
| Wheelbase Size | 2800 mm | 2890 mm |
| Fuel Consumption | 9.4 L/100km | 13.1 L/100km |
| Fuel Consumption Overall | 12.1 L/100km | 14.8 L/100km |
| Fuel Tank Capacity | 67 L | 70 L |
