2006 Audi A6 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 1 year(s). Which means there will be less support and parts availability for 2006 Audi A6. In addition, the cost of maintenance, including insurance, on 2006 Audi A6 would be higher. At 3,130 cc (6 cylinders), 2006 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (335 HP @ 7900 RPM) has 80 more horse power than 2006 Audi A6. (255 HP @ 6500 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2006 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A6 weights approximately 590 kg more than 2007 BMW Z4.
Because 2006 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2006 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, 2006 Audi A6 (330 Nm @ 3250 RPM) has 15 more torque (in Nm) than 2007 BMW Z4. (315 Nm @ 2750 RPM). This means 2006 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2006 Audi A6 | 2007 BMW Z4 | |
| Make | Audi | BMW |
| Model | A6 | Z4 |
| Year Released | 2006 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3130 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 255 HP | 335 HP |
| Engine RPM | 6500 RPM | 7900 RPM |
| Torque | 330 Nm | 315 Nm |
| Torque RPM | 3250 RPM | 2750 RPM |
| Engine Bore Size | 84.5 mm | 87 mm |
| Engine Stroke Size | 92.8 mm | 91 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1880 kg | 1290 kg |
| Vehicle Length | 4920 mm | 4100 mm |
| Vehicle Width | 2020 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2850 mm | 2500 mm |
| Fuel Consumption Overall | 10 L/100km | 9.1 L/100km |
| Fuel Tank Capacity | 80 L | 55 L |
