2008 BMW 550 vs. 2009 BMW 745
To start off, 2009 BMW 745 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW 550. In addition, the cost of maintenance, including insurance, on 2008 BMW 550 would be higher. At 4,799 cc, 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 32 more horse power than 2009 BMW 745. (328 HP @ 6100 RPM). In normal driving conditions, 2008 BMW 550 should accelerate faster than 2009 BMW 745. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 745 weights approximately 325 kg more than 2008 BMW 550.
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, 2008 BMW 550 (490 Nm @ 3400 RPM) has 40 more torque (in Nm) than 2009 BMW 745. (450 Nm @ 3600 RPM). This means 2008 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 745.
Compare all specifications:
| 2008 BMW 550 | 2009 BMW 745 | |
| Make | BMW | BMW |
| Model | 550 | 745 |
| Year Released | 2008 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 4396 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 328 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 490 Nm | 450 Nm |
| Torque RPM | 3400 RPM | 3600 RPM |
| Engine Bore Size | 93.1 mm | 92 mm |
| Engine Stroke Size | 88.3 mm | 82.7 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.9 seconds | 6.3 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1660 kg | 1985 kg |
| Vehicle Length | 4860 mm | 5180 mm |
| Vehicle Width | 1850 mm | 1910 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2890 mm | 3140 mm |
| Fuel Consumption Overall | 7.8 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 70 L | 88 L |
