2006 Rover 75 vs. 2012 BMW 550
To start off, 2012 BMW 550 is newer by 6 year(s). Which means there will be less support and parts availability for 2006 Rover 75. In addition, the cost of maintenance, including insurance, on 2006 Rover 75 would be higher. At 4,400 cc (8 cylinders), 2012 BMW 550 is equipped with a bigger engine. In terms of performance, 2012 BMW 550 (400 HP @ 5500 RPM) has 225 more horse power than 2006 Rover 75. (175 HP @ 4000 RPM) In normal driving conditions, 2012 BMW 550 should accelerate faster than 2006 Rover 75. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 550 weights approximately 745 kg more than 2006 Rover 75. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2012 BMW 550 is all wheel drive (AWD), it will have significant more traction and grip than 2006 Rover 75. In wet, icy, snow, or gravel driving conditions, 2012 BMW 550 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, 2012 BMW 550 (609 Nm @ 1750 RPM) has 369 more torque (in Nm) than 2006 Rover 75. (240 Nm @ 4000 RPM). This means 2012 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2006 Rover 75.
Compare all specifications:
| 2006 Rover 75 | 2012 BMW 550 | |
| Make | Rover | BMW |
| Model | 75 | 550 |
| Year Released | 2006 | 2012 |
| Engine Position | Front | Front |
| Engine Size | 2495 cc | 4400 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 175 HP | 400 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 240 Nm | 609 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1305 kg | 2050 kg |
| Vehicle Length | 4750 mm | 4899 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1464 mm |
| Wheelbase Size | 2750 mm | 2968 mm |
| Fuel Tank Capacity | 65 L | 70 L |
