2005 Audi A6 vs. 2008 BMW Z4
To start off, 2008 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 2,996 cc (6 cylinders), 2008 BMW Z4 is equipped with a bigger engine. In terms of performance, 2008 BMW Z4 (328 HP @ 7900 RPM) has 150 more horse power than 2005 Audi A6. (178 HP @ 6000 RPM) In normal driving conditions, 2008 BMW Z4 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 245 kg more than 2008 BMW Z4.
Because 2008 BMW Z4 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2008 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2005 Audi A6, being front wheel drive (FWD), will offer much better control with better grip. 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, 2008 BMW Z4 (315 Nm @ 2750 RPM) has 85 more torque (in Nm) than 2005 Audi A6. (230 Nm @ 3000 RPM). This means 2008 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 2008 BMW Z4 | |
| Make | Audi | BMW |
| Model | A6 | Z4 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 2996 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 178 HP | 328 HP |
| Engine RPM | 6000 RPM | 7900 RPM |
| Torque | 230 Nm | 315 Nm |
| Torque RPM | 3000 RPM | 2750 RPM |
| Acceleration 0-100mph | 9.2 seconds | 6.2 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1555 kg | 1310 kg |
| Vehicle Length | 4920 mm | 4100 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2850 mm | 2500 mm |
| Fuel Consumption Overall | 9.8 L/100km | 9.5 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
