2006 BMW 325 vs. 2006 BMW 545
To start off, both 2006 BMW 325 and 2006 BMW 545 were released in the same year (2006). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 4,396 cc (8 cylinders), 2006 BMW 545 is equipped with a bigger engine. In terms of performance, 2006 BMW 545 (328 HP @ 6100 RPM) has 144 more horse power than 2006 BMW 325. (184 HP @ 6000 RPM) In normal driving conditions, 2006 BMW 545 should accelerate faster than 2006 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 545 weights approximately 220 kg more than 2006 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 545 (450 Nm @ 3600 RPM) has 213 more torque (in Nm) than 2006 BMW 325. (237 Nm @ 3500 RPM). This means 2006 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 325.
Compare all specifications:
| 2006 BMW 325 | 2006 BMW 545 | |
| Make | BMW | BMW |
| Model | 325 | 545 |
| Year Released | 2006 | 2006 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2491 cc | 4396 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 184 HP | 328 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 237 Nm | 450 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 92 mm |
| Engine Stroke Size | 75 mm | 83 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1615 kg | 1835 kg |
| Vehicle Length | 4490 mm | 4850 mm |
| Vehicle Width | 1760 mm | 1850 mm |
| Vehicle Height | 1380 mm | 1380 mm |
| Wheelbase Size | 2730 mm | 2890 mm |
| Fuel Consumption | 8.7 L/100km | 9.1 L/100km |
| Fuel Consumption Overall | 10.7 L/100km | 10.6 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
