2004 Audi A4 vs. 2007 BMW M6
To start off, 2007 BMW M6 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 4,999 cc (10 cylinders), 2007 BMW M6 is equipped with a bigger engine. In terms of performance, 2007 BMW M6 (500 HP @ 7750 RPM) has 340 more horse power than 2004 Audi A4. (160 HP @ 4000 RPM) In normal driving conditions, 2007 BMW M6 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M6 weights approximately 350 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW M6 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 2007 BMW M6. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2007 BMW M6 (519 Nm @ 6100 RPM) has 209 more torque (in Nm) than 2004 Audi A4. (310 Nm @ 1400 RPM). This means 2007 BMW M6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2007 BMW M6 | |
| Make | Audi | BMW |
| Model | A4 | M6 |
| Year Released | 2004 | 2007 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 4999 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 160 HP | 500 HP |
| Engine RPM | 4000 RPM | 7750 RPM |
| Torque | 310 Nm | 519 Nm |
| Torque RPM | 1400 RPM | 6100 RPM |
| Engine Bore Size | 78.4 mm | 92 mm |
| Engine Stroke Size | 86.4 mm | 75.2 mm |
| Engine Compression Ratio | 18.0:1 | 12.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1590 kg | 1940 kg |
| Vehicle Length | 4590 mm | 4880 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1380 mm |
| Wheelbase Size | 2470 mm | 2790 mm |
| Fuel Consumption | 5.6 L/100km | 12.5 L/100km |
| Fuel Consumption City | 9.2 L/100km | 19.8 L/100km |
| Fuel Consumption Overall | 6.9 L/100km | 17 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
