2001 BMW 730 vs. 2007 BMW 550
To start off, 2007 BMW 550 is newer by 6 year(s). Which means there will be less support and parts availability for 2001 BMW 730. In addition, the cost of maintenance, including insurance, on 2001 BMW 730 would be higher. At 4,799 cc (8 cylinders), 2007 BMW 550 is equipped with a bigger engine. In terms of performance, 2007 BMW 550 (362 HP @ 6300 RPM) has 135 more horse power than 2001 BMW 730. (227 HP @ 5900 RPM) In normal driving conditions, 2007 BMW 550 should accelerate faster than 2001 BMW 730. With that said, vehicle weight also plays an important factor in acceleration. 2001 BMW 730 weights approximately 160 kg more than 2007 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, 2007 BMW 550 (490 Nm @ 3400 RPM) has 190 more torque (in Nm) than 2001 BMW 730. (300 Nm @ 3500 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2001 BMW 730.
Compare all specifications:
| 2001 BMW 730 | 2007 BMW 550 | |
| Make | BMW | BMW |
| Model | 730 | 550 |
| Year Released | 2001 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2925 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 227 HP | 362 HP |
| Engine RPM | 5900 RPM | 6300 RPM |
| Torque | 300 Nm | 490 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Bore Size | 84 mm | 93 mm |
| Engine Stroke Size | 89.6 mm | 88.3 mm |
| Engine Compression Ratio | 10.2:1 | 10.5:1 |
| Acceleration 0-100mph | 8.3 seconds | 5.8 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 | 1820 kg | 1660 kg |
| Vehicle Length | 5180 mm | 4850 mm |
| Vehicle Width | 1910 mm | 1470 mm |
| Vehicle Height | 1500 mm | 1850 mm |
| Wheelbase Size | 3000 mm | 2890 mm |
| Fuel Tank Capacity | 88 L | 70 L |
