2006 BMW 730 vs. 2011 BMW 520
To start off, 2011 BMW 520 is newer by 5 year(s). Which means there will be less support and parts availability for 2006 BMW 730. In addition, the cost of maintenance, including insurance, on 2006 BMW 730 would be higher. At 2,994 cc (6 cylinders), 2006 BMW 730 is equipped with a bigger engine. In terms of performance, 2006 BMW 730 (254 HP @ 6600 RPM) has 72 more horse power than 2011 BMW 520. (182 HP @ 4000 RPM). In normal driving conditions, 2006 BMW 730 should accelerate faster than 2011 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 730 weights approximately 125 kg more than 2011 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 2011 BMW 520 (380 Nm @ 2750 RPM) has 80 more torque (in Nm) than 2006 BMW 730. (300 Nm @ 2500 RPM). This means 2011 BMW 520 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 730.
Compare all specifications:
| 2006 BMW 730 | 2011 BMW 520 | |
| Make | BMW | BMW |
| Model | 730 | 520 |
| Year Released | 2006 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2994 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 182 HP |
| Engine RPM | 6600 RPM | 4000 RPM |
| Torque | 300 Nm | 380 Nm |
| Torque RPM | 2500 RPM | 2750 RPM |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 244 km/hour | 227 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 6.9 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1820 kg | 1695 kg |
| Vehicle Length | 5180 mm | 4899 mm |
| Vehicle Width | 1910 mm | 1860 mm |
| Vehicle Height | 1500 mm | 1464 mm |
| Wheelbase Size | 3140 mm | 2968 mm |
| Fuel Consumption Overall | 10.1 L/100km | 4.7 L/100km |
| Fuel Tank Capacity | 88 L | 70 L |
