2003 BMW 645 vs. 2009 Mercedes-Benz ML
To start off, 2009 Mercedes-Benz ML is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW 645. In addition, the cost of maintenance, including insurance, on 2003 BMW 645 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 645 is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (310 HP @ 6000 RPM) has 100 more horse power than 2009 Mercedes-Benz ML. (210 HP @ 3800 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2009 Mercedes-Benz ML.
Because 2009 Mercedes-Benz ML is four wheel drive (4WD), it will have significant more traction and grip than 2003 BMW 645. In wet, icy, snow, or gravel driving conditions, 2009 Mercedes-Benz ML 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, 2009 Mercedes-Benz ML (540 Nm @ 1600 RPM) has 90 more torque (in Nm) than 2003 BMW 645. (450 Nm @ 3600 RPM). This means 2009 Mercedes-Benz ML will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 645.
Compare all specifications:
| 2003 BMW 645 | 2009 Mercedes-Benz ML | |
| Make | BMW | Mercedes-Benz |
| Model | 645 | ML |
| Year Released | 2003 | 2009 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 2987 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 310 HP | 210 HP |
| Engine RPM | 6000 RPM | 3800 RPM |
| Torque | 450 Nm | 540 Nm |
| Torque RPM | 3600 RPM | 1600 RPM |
| Engine Compression Ratio | 10.5:1 | 9.0:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Length | 4830 mm | 4790 mm |
| Vehicle Width | 1860 mm | 1940 mm |
| Vehicle Height | 1380 mm | 1820 mm |
| Wheelbase Size | 2790 mm | 2920 mm |
| Fuel Consumption | 8 L/100km | 10 L/100km |
| Fuel Consumption City | 16.1 L/100km | 13.2 L/100km |
| Fuel Consumption Overall | 10.9 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 70 L | 95 L |
