2007 BMW 325 vs. 2003 BMW 730
To start off, 2007 BMW 325 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 BMW 730. In addition, the cost of maintenance, including insurance, on 2003 BMW 730 would be higher. At 2,999 cc (6 cylinders), 2003 BMW 730 is equipped with a bigger engine. In terms of performance, 2003 BMW 730 (228 HP @ 5900 RPM) has 13 more horse power than 2007 BMW 325. (215 HP @ 6500 RPM) In normal driving conditions, 2003 BMW 730 should accelerate faster than 2007 BMW 325. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 730 weights approximately 315 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, 2003 BMW 730 (300 Nm @ 3500 RPM) has 50 more torque (in Nm) than 2007 BMW 325. (250 Nm @ 2750 RPM). This means 2003 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 325. 2003 BMW 730 has automatic transmission and 2007 BMW 325 has manual transmission. 2007 BMW 325 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 730 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 BMW 325 | 2003 BMW 730 | |
| Make | BMW | BMW |
| Model | 325 | 730 |
| Year Released | 2007 | 2003 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2497 cc | 2999 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 215 HP | 228 HP |
| Engine RPM | 6500 RPM | 5900 RPM |
| Torque | 250 Nm | 300 Nm |
| Torque RPM | 2750 RPM | 3500 RPM |
| Engine Bore Size | 82 mm | 84.1 mm |
| Engine Stroke Size | 78.8 mm | 90 mm |
| Engine Compression Ratio | 10.2:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1475 kg | 1790 kg |
| Vehicle Length | 4490 mm | 5040 mm |
| Vehicle Width | 1380 mm | 1910 mm |
| Vehicle Height | 1760 mm | 1500 mm |
| Wheelbase Size | 2770 mm | 3000 mm |
| Fuel Tank Capacity | 63 L | 63 L |
