2003 BMW 320 vs. 2006 BMW 730
To start off, 2006 BMW 730 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 BMW 320. In addition, the cost of maintenance, including insurance, on 2003 BMW 320 would be higher. At 2,991 cc (6 cylinders), 2006 BMW 730 is equipped with a bigger engine. In terms of performance, 2006 BMW 730 (228 HP @ 4000 RPM) has 80 more horse power than 2003 BMW 320. (148 HP @ 5900 RPM) In normal driving conditions, 2006 BMW 730 should accelerate faster than 2003 BMW 320. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW 730 weights approximately 510 kg more than 2003 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, 2006 BMW 730 (520 Nm @ 2000 RPM) has 310 more torque (in Nm) than 2003 BMW 320. (210 Nm @ 3750 RPM). This means 2006 BMW 730 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 320.
Compare all specifications:
2003 BMW 320 | 2006 BMW 730 | |
Make | BMW | BMW |
Model | 320 | 730 |
Year Released | 2003 | 2006 |
Body Type | Convertible | Sedan |
Engine Position | Front | Front |
Engine Size | 1995 cc | 2991 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 4 valves | 4 valves |
Horse Power | 148 HP | 228 HP |
Engine RPM | 5900 RPM | 4000 RPM |
Torque | 210 Nm | 520 Nm |
Torque RPM | 3750 RPM | 2000 RPM |
Engine Compression Ratio | 10.0:1 | 18.0:1 |
Fuel Type | Gasoline - Premium | Diesel |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 4 seats | 5 seats |
Number of Doors | 2 doors | 4 doors |
Vehicle Weight | 1465 kg | 1975 kg |
Vehicle Length | 4490 mm | 5050 mm |
Vehicle Width | 1760 mm | 1910 mm |
Vehicle Height | 1380 mm | 1500 mm |
Wheelbase Size | 2730 mm | 3000 mm |
Fuel Tank Capacity | 63 L | 88 L |