2009 BMW 745 vs. 2007 Audi A4
To start off, 2009 BMW 745 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 4,396 cc (8 cylinders), 2009 BMW 745 is equipped with a bigger engine. In terms of performance, 2009 BMW 745 (328 HP @ 6100 RPM) has 190 more horse power than 2007 Audi A4. (138 HP @ 4000 RPM). In normal driving conditions, 2009 BMW 745 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 745 weights approximately 710 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 BMW 745 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2009 BMW 745. However, in wet, icy, snow, or gravel driving conditions, 2007 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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 745 (450 Nm @ 3600 RPM) has 130 more torque (in Nm) than 2007 Audi A4. (320 Nm @ 1750 RPM). This means 2009 BMW 745 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2009 BMW 745 | 2007 Audi A4 | |
| Make | BMW | Audi |
| Model | 745 | A4 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4396 cc | 1968 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 328 HP | 138 HP |
| Engine RPM | 6100 RPM | 4000 RPM |
| Torque | 450 Nm | 320 Nm |
| Torque RPM | 3600 RPM | 1750 RPM |
| Engine Bore Size | 92 mm | 81.1 mm |
| Engine Stroke Size | 82.7 mm | 95.5 mm |
| Engine Compression Ratio | 10.0:1 | 18.0:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 6.3 seconds | 9.9 seconds |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1985 kg | 1275 kg |
| Vehicle Length | 5180 mm | 4550 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1500 mm | 1430 mm |
| Wheelbase Size | 3140 mm | 2660 mm |
| Fuel Consumption Overall | 11.2 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 88 L | 70 L |
