2004 Audi A6 vs. 2007 BMW Z4
To start off, 2007 BMW Z4 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 Audi A6 would be higher. At 2,492 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 2007 BMW Z4 (189 HP @ 6000 RPM) has 21 more horse power than 2004 Audi A6. (168 HP @ 6000 RPM) In normal driving conditions, 2007 BMW Z4 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 95 kg more than 2007 BMW Z4.
Because 2007 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 2007 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2004 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, 2007 BMW Z4 (245 Nm @ 3500 RPM) has 15 more torque (in Nm) than 2004 Audi A6. (230 Nm @ 3200 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2004 Audi A6 | 2007 BMW Z4 | |
| Make | Audi | BMW |
| Model | A6 | Z4 |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 2492 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 168 HP | 189 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 230 Nm | 245 Nm |
| Torque RPM | 3200 RPM | 3500 RPM |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 219 km/hour | 235 km/hour |
| Acceleration 0-100mph | 9.3 seconds | 7 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1430 kg | 1335 kg |
| Vehicle Length | 4920 mm | 4100 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1310 mm |
| Wheelbase Size | 2770 mm | 2500 mm |
| Fuel Consumption | 7.1 L/100km | 8.4 L/100km |
| Fuel Consumption City | 14.3 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 9.7 L/100km | 9 L/100km |
| Fuel Tank Capacity | 70 L | 55 L |
