2008 BMW 320 vs. 2003 BMW 730
To start off, 2008 BMW 320 is newer by 5 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 67 more horse power than 2008 BMW 320. (161 HP @ 4000 RPM) In normal driving conditions, 2003 BMW 730 should accelerate faster than 2008 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 730 weights approximately 360 kg more than 2008 BMW 320. 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, 2008 BMW 320 (330 Nm @ 2000 RPM) has 30 more torque (in Nm) than 2003 BMW 730. (300 Nm @ 3500 RPM). This means 2008 BMW 320 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 730.
Compare all specifications:
| 2008 BMW 320 | 2003 BMW 730 | |
| Make | BMW | BMW |
| Model | 320 | 730 |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 2999 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 161 HP | 228 HP |
| Engine RPM | 4000 RPM | 5900 RPM |
| Torque | 330 Nm | 300 Nm |
| Torque RPM | 2000 RPM | 3500 RPM |
| Engine Compression Ratio | 17.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1790 kg |
| Vehicle Length | 4870 mm | 5040 mm |
| Vehicle Height | 1470 mm | 1500 mm |
| Wheelbase Size | 2770 mm | 3000 mm |
| Fuel Tank Capacity | 60 L | 63 L |
