2007 BMW 325 vs. 2006 BMW 550
To start off, 2007 BMW 325 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 BMW 550. In addition, the cost of maintenance, including insurance, on 2006 BMW 550 would be higher. At 4,799 cc (8 cylinders), 2006 BMW 550 is equipped with a bigger engine. In terms of performance, 2006 BMW 550 (360 HP @ 6300 RPM) has 144 more horse power than 2007 BMW 325. (216 HP @ 6500 RPM) In normal driving conditions, 2006 BMW 550 should accelerate faster than 2007 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 550 weights approximately 280 kg more than 2007 BMW 325. 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, 2006 BMW 550 (488 Nm) has 238 more torque (in Nm) than 2007 BMW 325. (250 Nm). This means 2006 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 325. 2007 BMW 325 has automatic transmission and 2006 BMW 550 has manual transmission. 2006 BMW 550 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW 325 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 325 | 2006 BMW 550 | |
| Make | BMW | BMW |
| Model | 325 | 550 |
| Year Released | 2007 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 216 HP | 360 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 250 Nm | 488 Nm |
| Engine Bore Size | 78.8 mm | 93.1 mm |
| Engine Stroke Size | 82 mm | 88.4 mm |
| Fuel Type | Gasoline | Gasoline |
| Acceleration 0-100mph | 7.7 seconds | 5.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1445 kg | 1725 kg |
| Vehicle Length | 4530 mm | 4880 mm |
| Vehicle Width | 1820 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
| Fuel Consumption Overall | 9 L/100km | 12.4 L/100km |
| Fuel Tank Capacity | 60 L | 70 L |
