2003 BMW 645 vs. 2004 Lincoln Navigator
To start off, 2004 Lincoln Navigator 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 5,406 cc (8 cylinders), 2004 Lincoln Navigator is equipped with a bigger engine. In terms of performance, 2003 BMW 645 (310 HP @ 6000 RPM) has 10 more horse power than 2004 Lincoln Navigator. (300 HP @ 5000 RPM). In normal driving conditions, 2003 BMW 645 should accelerate faster than 2004 Lincoln Navigator. With that said, vehicle weight also plays an important factor in acceleration. 2004 Lincoln Navigator weights approximately 894 kg more than 2003 BMW 645.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2004 Lincoln Navigator (481 Nm @ 3750 RPM) has 31 more torque (in Nm) than 2003 BMW 645. (450 Nm @ 3600 RPM). This means 2004 Lincoln Navigator will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 645.
Compare all specifications:
| 2003 BMW 645 | 2004 Lincoln Navigator | |
| Make | BMW | Lincoln |
| Model | 645 | Navigator |
| Year Released | 2003 | 2004 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5406 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 310 HP | 300 HP |
| Engine RPM | 6000 RPM | 5000 RPM |
| Torque | 450 Nm | 481 Nm |
| Torque RPM | 3600 RPM | 3750 RPM |
| Engine Bore Size | 92 mm | 90 mm |
| Engine Stroke Size | 82.7 mm | 106 mm |
| Engine Compression Ratio | 10.5:1 | 9.5:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1698 kg | 2592 kg |
| Vehicle Length | 4830 mm | 5240 mm |
| Vehicle Width | 1860 mm | 2040 mm |
| Vehicle Height | 1380 mm | 1980 mm |
| Wheelbase Size | 2790 mm | 3030 mm |
| Fuel Consumption | 8 L/100km | 13.1 L/100km |
| Fuel Consumption City | 16.1 L/100km | 18.1 L/100km |
| Fuel Consumption Overall | 10.9 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 70 L | 106 L |
