2006 BMW 325 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 7 year(s). Which means there will be less support and parts availability for 2006 BMW 325. In addition, the cost of maintenance, including insurance, on 2006 BMW 325 would be higher. At 2,979 cc (6 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (311 HP @ 6000 RPM) has 127 more horse power than 2006 BMW 325. (184 HP @ 6000 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2006 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 200 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, 2013 BMW 6 series (447 Nm @ 4500 RPM) has 210 more torque (in Nm) than 2006 BMW 325. (237 Nm @ 3500 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 325.
Compare all specifications:
| 2006 BMW 325 | 2013 BMW 6 series | |
| Make | BMW | BMW |
| Model | 325 | 6 series |
| Year Released | 2006 | 2013 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2491 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 184 HP | 311 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 237 Nm | 447 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 75 mm | 89 mm |
| Engine Compression Ratio | 10.5:1 | 10.2 :1 |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1615 kg | 1815 kg |
| Vehicle Length | 4490 mm | 4897 mm |
| Vehicle Width | 1760 mm | 1895 mm |
| Vehicle Height | 1380 mm | 1369 mm |
| Wheelbase Size | 2730 mm | 2856 mm |
| Fuel Tank Capacity | 63 L | 70 L |
