2007 BMW X3 vs. 2006 BMW 645
To start off, 2007 BMW X3 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 645. In addition, the cost of maintenance, including insurance, on 2006 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2006 BMW 645 is equipped with a bigger engine. In terms of performance, 2006 BMW 645 (328 HP @ 6100 RPM) has 45 more horse power than 2007 BMW X3. (283 HP @ 4400 RPM) In normal driving conditions, 2006 BMW 645 should accelerate faster than 2007 BMW X3. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW X3 weights approximately 140 kg more than 2006 BMW 645.
Because 2007 BMW X3 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2007 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 X3 (580 Nm @ 1750 RPM) has 130 more torque (in Nm) than 2006 BMW 645. (450 Nm @ 3600 RPM). This means 2007 BMW X3 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 645.
Compare all specifications:
2007 BMW X3 | 2006 BMW 645 | |
Make | BMW | BMW |
Model | X3 | 645 |
Year Released | 2007 | 2006 |
Body Type | SUV | Coupe |
Engine Position | Front | Front |
Engine Size | 2993 cc | 4398 cc |
Engine Cylinders | 6 cylinders | 8 cylinders |
Engine Type | in-line | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 283 HP | 328 HP |
Engine RPM | 4400 RPM | 6100 RPM |
Torque | 580 Nm | 450 Nm |
Torque RPM | 1750 RPM | 3600 RPM |
Engine Compression Ratio | 17.0:1 | 10.0:1 |
Fuel Type | Diesel | Gasoline |
Top Speed | 240 km/hour | 250 km/hour |
Acceleration 0-100mph | 6.6 seconds | 5.6 seconds |
Drive Type | 4WD | Rear |
Transmission Type | Automatic | Automatic |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 5 doors | 2 doors |
Vehicle Weight | 1950 kg | 1810 kg |
Vehicle Length | 4570 mm | 4830 mm |
Vehicle Width | 1860 mm | 1860 mm |
Vehicle Height | 1680 mm | 1380 mm |
Wheelbase Size | 2800 mm | 2790 mm |
Fuel Consumption Overall | 8.7 L/100km | 13.3 L/100km |
Fuel Tank Capacity | 67 L | 70 L |