2006 BMW 645 vs. 2009 Ford Flex
To start off, 2009 Ford Flex is newer by 3 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 66 more horse power than 2009 Ford Flex. (262 HP @ 6250 RPM). In normal driving conditions, 2006 BMW 645 should accelerate faster than 2009 Ford Flex. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 645 weights approximately 844 kg more than 2009 Ford Flex. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Ford Flex 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, 2009 Ford Flex 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, 2006 BMW 645 (450 Nm @ 3600 RPM) has 114 more torque (in Nm) than 2009 Ford Flex. (336 Nm @ 4500 RPM). This means 2006 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2009 Ford Flex.
Compare all specifications:
| 2006 BMW 645 | 2009 Ford Flex | |
| Make | BMW | Ford |
| Model | 645 | Flex |
| Year Released | 2006 | 2009 |
| Body Type | Coupe | Crossover |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3496 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 262 HP |
| Engine RPM | 6100 RPM | 6250 RPM |
| Torque | 450 Nm | 336 Nm |
| Torque RPM | 3600 RPM | 4500 RPM |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1810 kg | 966 kg |
| Vehicle Length | 4830 mm | 5130 mm |
| Vehicle Width | 1860 mm | 1930 mm |
| Vehicle Height | 1380 mm | 1730 mm |
| Wheelbase Size | 2790 mm | 3000 mm |
| Fuel Consumption Overall | 13.3 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
