2008 Audi A4 vs. 2013 BMW 6 series
To start off, 2013 BMW 6 series is newer by 5 year(s). Which means there will be less support and parts availability for 2008 Audi A4. In addition, the cost of maintenance, including insurance, on 2008 Audi A4 would be higher. At 4,395 cc (8 cylinders), 2013 BMW 6 series is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2013 BMW 6 series weights approximately 545 kg more than 2008 Audi A4.
Because 2008 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, 2008 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 @ 4500 RPM) has 351 more torque (in Nm) than 2008 Audi A4. (300 Nm @ 3200 RPM). This means 2013 BMW 6 series will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2008 Audi A4 | 2013 BMW 6 series | |
| Make | Audi | BMW |
| Model | A4 | 6 series |
| Year Released | 2008 | 2013 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2975 cc | 4395 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 0 HP | 439 HP |
| Torque | 300 Nm | 651 Nm |
| Torque RPM | 3200 RPM | 4500 RPM |
| Engine Bore Size | 82.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 89 mm |
| Engine Compression Ratio | 10.5:1 | 10.0 :1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 243 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.9 seconds | 4.5 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1505 kg | 2050 kg |
| Vehicle Length | 4580 mm | 4897 mm |
| Vehicle Width | 1780 mm | 1895 mm |
| Vehicle Height | 1370 mm | 1364 mm |
| Wheelbase Size | 2660 mm | 2855 mm |
| Fuel Tank Capacity | 66 L | 70 L |
