2008 BMW 325 vs. 2007 BMW 550
To start off, 2008 BMW 325 is newer by 1 year(s). Which means there will be less support and parts availability for 2007 BMW 550. In addition, the cost of maintenance, including insurance, on 2007 BMW 550 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 173 more horse power than 2008 BMW 325. (189 HP @ 6000 RPM) In normal driving conditions, 2007 BMW 550 should accelerate faster than 2008 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 550 weights approximately 20 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, 2007 BMW 550 (490 Nm @ 3400 RPM) has 245 more torque (in Nm) than 2008 BMW 325. (245 Nm @ 3500 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 325.
Compare all specifications:
| 2008 BMW 325 | 2007 BMW 550 | |
| Make | BMW | BMW |
| Model | 325 | 550 |
| Year Released | 2008 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2493 cc | 4799 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 362 HP |
| Engine RPM | 6000 RPM | 6300 RPM |
| Torque | 245 Nm | 490 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Bore Size | 84 mm | 93.1 mm |
| Engine Stroke Size | 75 mm | 88.3 mm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Acceleration 0-100mph | 8 seconds | 5.5 seconds |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1640 kg | 1660 kg |
| Vehicle Length | 4490 mm | 4850 mm |
| Vehicle Width | 1760 mm | 1470 mm |
| Vehicle Height | 1380 mm | 1850 mm |
| Wheelbase Size | 2730 mm | 2890 mm |
| Fuel Consumption Overall | 9.6 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
