2008 Audi A6 vs. 2003 BMW Z4
To start off, 2008 Audi A6 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 BMW Z4. In addition, the cost of maintenance, including insurance, on 2003 BMW Z4 would be higher. At 3,698 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2003 BMW Z4 (227 HP @ 6000 RPM) has 50 more horse power than 2008 Audi A6. (177 HP @ 3300 RPM) In normal driving conditions, 2003 BMW Z4 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 365 kg more than 2003 BMW Z4.
Because 2003 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 2003 BMW Z4. However, in wet, icy, snow, or gravel driving conditions, 2008 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 Audi A6 (380 Nm @ 1400 RPM) has 89 more torque (in Nm) than 2003 BMW Z4. (291 Nm @ 3500 RPM). This means 2008 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW Z4. 2008 Audi A6 has automatic transmission and 2003 BMW Z4 has manual transmission. 2003 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi A6 | 2003 BMW Z4 | |
| Make | Audi | BMW |
| Model | A6 | Z4 |
| Year Released | 2008 | 2003 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 3698 cc | 2999 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 177 HP | 227 HP |
| Engine RPM | 3300 RPM | 6000 RPM |
| Torque | 380 Nm | 291 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Bore Size | 83.1 mm | 84 mm |
| Engine Stroke Size | 83.1 mm | 90 mm |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1655 kg | 1290 kg |
| Vehicle Length | 4920 mm | 4100 mm |
| Vehicle Width | 1470 mm | 1790 mm |
| Vehicle Height | 1860 mm | 1310 mm |
| Wheelbase Size | 2850 mm | 2500 mm |
| Fuel Tank Capacity | 70 L | 55 L |
