2006 BMW 550 vs. 2008 BMW 325
To start off, 2008 BMW 325 is newer by 2 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 171 more horse power than 2008 BMW 325. (189 HP @ 6000 RPM). In normal driving conditions, 2006 BMW 550 should accelerate faster than 2008 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 550 weights approximately 85 kg more than 2008 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 @ 3400 RPM) has 243 more torque (in Nm) than 2008 BMW 325. (245 Nm @ 3500 RPM). This means 2006 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 325. 2008 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. 2008 BMW 325 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW 550 | 2008 BMW 325 | |
| Make | BMW | BMW |
| Model | 550 | 325 |
| Year Released | 2006 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 2493 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 360 HP | 189 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 488 Nm | 245 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 93.1 mm | 84 mm |
| Engine Stroke Size | 88.4 mm | 75 mm |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.5 seconds | 8 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1725 kg | 1640 kg |
| Vehicle Length | 4880 mm | 4490 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1380 mm |
| Wheelbase Size | 2890 mm | 2730 mm |
| Fuel Consumption Overall | 12.4 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
