2005 Audi A4 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 8 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. In terms of performance, 2013 BMW 6 series (439 HP @ 6000 RPM) has 268 more horse power than 2005 Audi A4. (171 HP @ 6200 RPM) In normal driving conditions, 2013 BMW 6 series should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 390 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2013 BMW 6 series. In wet, icy, snow, or gravel driving conditions, 2005 Audi A4 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, 2013 BMW 6 series (651 Nm) has 426 more torque (in Nm) than 2005 Audi A4. (225 Nm). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2013 BMW 6 series | |
| Make | Audi | BMW |
| Model | A4 | 6 series |
| Year Released | 2005 | 2013 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 1786 cc | 4395 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 171 HP | 439 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 225 Nm | 651 Nm |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86 mm | 89 mm |
| Engine Compression Ratio | 9.3:1 | 10.0 :1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1660 kg | 2050 kg |
| Vehicle Length | 4550 mm | 4897 mm |
| Vehicle Width | 1770 mm | 1895 mm |
| Vehicle Height | 1430 mm | 1364 mm |
| Wheelbase Size | 2770 mm | 2855 mm |
| Fuel Consumption | 8.4 L/100km | 10.2 L/100km |
| Fuel Consumption City | 11.8 L/100km | 15.7 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
