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 (437 HP @ 5500 RPM) has 266 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 429 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.
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 (649 Nm) has 424 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 | Coupe |
| 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 | 437 HP |
| Engine RPM | 6200 RPM | 5500 RPM |
| Torque | 225 Nm | 649 Nm |
| Engine Bore Size | 81 mm | 89 mm |
| Engine Stroke Size | 86 mm | 88 mm |
| Engine Compression Ratio | 9.3:1 | 10.0 :1 |
| Drive Type | 4WD | AWD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1660 kg | 2089 kg |
| Vehicle Length | 4550 mm | 5009 mm |
| Vehicle Width | 1770 mm | 2081 mm |
| Vehicle Height | 1430 mm | 1392 mm |
| Wheelbase Size | 2770 mm | 2968 mm |
| Fuel Consumption Highway | 8.4 L/100km | 7.1 L/100km |
| Fuel Consumption City | 11.8 L/100km | 12.9 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
