2009 Audi A6 vs. 2008 BMW Z4
To start off, 2009 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 BMW Z4. In addition, the cost of maintenance, including insurance, on 2008 BMW Z4 would be higher. At 4,163 cc (8 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (350 HP @ 6800 RPM) has 22 more horse power than 2008 BMW Z4. (328 HP @ 7900 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2008 BMW Z4.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 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 Audi A6 (441 Nm @ 3500 RPM) has 126 more torque (in Nm) than 2008 BMW Z4. (315 Nm @ 2750 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW Z4.
Compare all specifications:
| 2009 Audi A6 | 2008 BMW Z4 | |
| Make | Audi | BMW |
| Model | A6 | Z4 |
| Year Released | 2009 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2996 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 328 HP |
| Engine RPM | 6800 RPM | 7900 RPM |
| Torque | 441 Nm | 315 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4930 mm | 4100 mm |
| Vehicle Width | 2040 mm | 1790 mm |
| Vehicle Height | 1460 mm | 1310 mm |
| Wheelbase Size | 2850 mm | 2500 mm |
| Fuel Consumption Overall | 13.2 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
