2009 BMW 740 vs. 2007 BMW 323
To start off, 2009 BMW 740 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 323. In addition, the cost of maintenance, including insurance, on 2007 BMW 323 would be higher. At 3,901 cc (8 cylinders), 2009 BMW 740 is equipped with a bigger engine. In terms of performance, 2009 BMW 740 (254 HP @ 4000 RPM) has 78 more horse power than 2007 BMW 323. (176 HP @ 6200 RPM). In normal driving conditions, 2009 BMW 740 should accelerate faster than 2007 BMW 323. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 740 weights approximately 570 kg more than 2007 BMW 323. 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, 2009 BMW 740 (600 Nm @ 1900 RPM) has 370 more torque (in Nm) than 2007 BMW 323. (230 Nm @ 3600 RPM). This means 2009 BMW 740 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 323.
Compare all specifications:
| 2009 BMW 740 | 2007 BMW 323 | |
| Make | BMW | BMW |
| Model | 740 | 323 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3901 cc | 2497 cc |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 176 HP |
| Engine RPM | 4000 RPM | 6200 RPM |
| Torque | 600 Nm | 230 Nm |
| Torque RPM | 1900 RPM | 3600 RPM |
| Engine Bore Size | 84 mm | 78.8 mm |
| Engine Stroke Size | 88 mm | 82 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| 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 | 2090 kg | 1520 kg |
| Vehicle Length | 5040 mm | 4530 mm |
| Vehicle Width | 1910 mm | 1430 mm |
| Vehicle Height | 1500 mm | 1820 mm |
| Wheelbase Size | 3000 mm | 2770 mm |
| Fuel Consumption Overall | 9.8 L/100km | 7.5 L/100km |
| Fuel Tank Capacity | 88 L | 60 L |
