2003 BMW 645 vs. 2009 Nissan Armada
To start off, 2009 Nissan Armada 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 5,551 cc (8 cylinders), 2009 Nissan Armada is equipped with a bigger engine. In terms of performance, 2009 Nissan Armada (317 HP @ 5200 RPM) has 7 more horse power than 2003 BMW 645. (310 HP @ 6000 RPM) In normal driving conditions, 2009 Nissan Armada should accelerate faster than 2003 BMW 645. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 645 weights approximately 256 kg more than 2009 Nissan Armada.
Because 2009 Nissan Armada 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 Nissan Armada 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 Nissan Armada (522 Nm @ 3400 RPM) has 72 more torque (in Nm) than 2003 BMW 645. (450 Nm @ 3600 RPM). This means 2009 Nissan Armada will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 645.
Compare all specifications:
| 2003 BMW 645 | 2009 Nissan Armada | |
| Make | BMW | Nissan |
| Model | 645 | Armada |
| Year Released | 2003 | 2009 |
| Body Type | Coupe | SUV |
| Engine Position | Front | Front |
| Engine Size | 4398 cc | 5551 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 310 HP | 317 HP |
| Engine RPM | 6000 RPM | 5200 RPM |
| Torque | 450 Nm | 522 Nm |
| Torque RPM | 3600 RPM | 3400 RPM |
| Engine Compression Ratio | 10.5:1 | 9.6:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 8 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1698 kg | 1442 kg |
| Vehicle Length | 4830 mm | 5280 mm |
| Vehicle Width | 1860 mm | 2020 mm |
| Vehicle Height | 1380 mm | 1990 mm |
| Wheelbase Size | 2790 mm | 3140 mm |
| Fuel Consumption | 8 L/100km | 13.8 L/100km |
| Fuel Consumption City | 16.1 L/100km | 19.6 L/100km |
| Fuel Consumption Overall | 10.9 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 70 L | 106 L |
