2009 BMW Z4 vs. 2013 Audi A6
To start off, 2013 Audi A6 is newer by 4 year(s). Which means there will be less support and parts availability for 2009 BMW Z4. In addition, the cost of maintenance, including insurance, on 2009 BMW Z4 would be higher. At 3,244 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP) has 130 more horse power than 2013 Audi A6. (208 HP). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2013 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2013 Audi A6 weights approximately 179 kg more than 2009 BMW Z4.
Because 2013 Audi A6 is all wheel drive (AWD), it will have significant more traction and grip than 2009 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2013 Audi A6 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, 2009 BMW Z4 (365 Nm @ 4900 RPM) has 15 more torque (in Nm) than 2013 Audi A6. (350 Nm @ 4200 RPM). This means 2009 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2013 Audi A6.
Compare all specifications:
| 2009 BMW Z4 | 2013 Audi A6 | |
| Make | BMW | Audi |
| Model | Z4 | A6 |
| Year Released | 2009 | 2013 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3244 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | W |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 208 HP |
| Torque | 365 Nm | 350 Nm |
| Torque RPM | 4900 RPM | 4200 RPM |
| Engine Bore Size | 87 mm | 82.5 mm |
| Engine Stroke Size | 91 mm | 92.8 mm |
| Engine Compression Ratio | 11.5:1 | 9.6:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 210 km/hour |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | CVT |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1495 kg | 1674 kg |
| Vehicle Length | 4120 mm | 4925 mm |
| Vehicle Width | 1790 mm | 2086 mm |
| Vehicle Height | 1290 mm | 1468 mm |
| Wheelbase Size | 2500 mm | 2912 mm |
