2003 BMW 645 vs. 2004 Jeep Grand Cherokee
To start off, 2004 Jeep Grand Cherokee is newer by 1 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 (321 HP @ 6100 RPM) has 126 more horse power than 2004 Jeep Grand Cherokee. (195 HP @ 3800 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2004 Jeep Grand Cherokee. With that said, vehicle weight also plays an important factor in acceleration. 2004 Jeep Grand Cherokee weights approximately 4 kg more than 2003 BMW 645.
Because 2004 Jeep Grand Cherokee 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, 2004 Jeep Grand Cherokee 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, 2003 BMW 645 (450 Nm @ 3600 RPM) has 138 more torque (in Nm) than 2004 Jeep Grand Cherokee. (312 Nm @ 3000 RPM). This means 2003 BMW 645 will have an easier job in driving up hills or pulling heavy equipment than 2004 Jeep Grand Cherokee.
Compare all specifications:
| 2003 BMW 645 | 2004 Jeep Grand Cherokee | |
| Make | BMW | Jeep |
| Model | 645 | Grand Cherokee |
| Year Released | 2003 | 2004 |
| Body Type | Convertible | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 3965 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 321 HP | 195 HP |
| Engine RPM | 6100 RPM | 3800 RPM |
| Torque | 450 Nm | 312 Nm |
| Torque RPM | 3600 RPM | 3000 RPM |
| Engine Bore Size | 92 mm | 99 mm |
| Engine Stroke Size | 82.7 mm | 87 mm |
| Engine Compression Ratio | 10.5:1 | 8.8:1 |
| Drive Type | Rear | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1895 kg | 1899 kg |
| Vehicle Length | 4830 mm | 4610 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1380 mm | 1770 mm |
| Wheelbase Size | 2790 mm | 2700 mm |
| Fuel Consumption | 8.5 L/100km | 11.2 L/100km |
| Fuel Consumption City | 16.8 L/100km | 14.7 L/100km |
| Fuel Consumption Overall | 11.5 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 70 L | 78 L |
