2006 BMW 645 vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 5 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 4,400 cc (8 cylinders), 2011 BMW X5 is equipped with a bigger engine. In terms of performance, 2011 BMW X5 (400 HP @ 5500 RPM) has 72 more horse power than 2006 BMW 645. (328 HP @ 6100 RPM) In normal driving conditions, 2011 BMW X5 should accelerate faster than 2006 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 630 kg more than 2006 BMW 645. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 2006 BMW 645. In wet, icy, snow, or gravel driving conditions, 2011 BMW X5 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, 2011 BMW X5 (609 Nm @ 1750 RPM) has 159 more torque (in Nm) than 2006 BMW 645. (450 Nm @ 3600 RPM). This means 2011 BMW X5 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 645.
Compare all specifications:
2006 BMW 645 | 2011 BMW X5 | |
Make | BMW | BMW |
Model | 645 | X5 |
Year Released | 2006 | 2011 |
Body Type | Coupe | SUV |
Engine Position | Front | Front |
Engine Size | 4398 cc | 4400 cc |
Engine Cylinders | 8 cylinders | 8 cylinders |
Engine Type | V | V |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 328 HP | 400 HP |
Engine RPM | 6100 RPM | 5500 RPM |
Torque | 450 Nm | 609 Nm |
Torque RPM | 3600 RPM | 1750 RPM |
Fuel Type | Gasoline | Gasoline |
Drive Type | Rear | AWD |
Transmission Type | Automatic | Automatic |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 5 doors |
Vehicle Weight | 1810 kg | 2440 kg |
Vehicle Length | 4830 mm | 4857 mm |
Vehicle Width | 1860 mm | 1933 mm |
Vehicle Height | 1380 mm | 1776 mm |
Wheelbase Size | 2790 mm | 2934 mm |
Fuel Tank Capacity | 70 L | 85 L |