2007 Audi A8 vs. 2005 BMW 740
To start off, 2007 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 740. In addition, the cost of maintenance, including insurance, on 2005 BMW 740 would be higher. At 5,998 cc (12 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (450 HP @ 6200 RPM) has 133 more horse power than 2005 BMW 740. (317 HP @ 6300 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2005 BMW 740. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 253 kg more than 2005 BMW 740. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 740. In wet, icy, snow, or gravel driving conditions, 2007 Audi A8 will offer significantly more control. 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, 2007 Audi A8 (580 Nm @ 4000 RPM) has 189 more torque (in Nm) than 2005 BMW 740. (391 Nm @ 3500 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 740.
Compare all specifications:
| 2007 Audi A8 | 2005 BMW 740 | |
| Make | Audi | BMW |
| Model | A8 | 740 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 4000 cc |
| Engine Cylinders | 12 cylinders | 8 cylinders |
| Engine Type | W | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 317 HP |
| Engine RPM | 6200 RPM | 6300 RPM |
| Torque | 580 Nm | 391 Nm |
| Torque RPM | 4000 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 87 mm |
| Engine Stroke Size | 90 mm | 84.1 mm |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 2148 kg | 1895 kg |
| Vehicle Length | 5200 mm | 5050 mm |
| Vehicle Width | 1900 mm | 1910 mm |
| Vehicle Height | 1460 mm | 1500 mm |
| Wheelbase Size | 3080 mm | 3000 mm |
| Fuel Consumption Highway | 11.2 L/100km | 8.2 L/100km |
| Fuel Consumption City | 16.8 L/100km | 16.3 L/100km |
| Fuel Consumption Overall | 13.8 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 88 L |
