2002 Audi A6 vs. 2006 BMW Z4
To start off, 2006 BMW Z4 is newer by 4 year(s). Which means there will be less support and parts availability for 2002 Audi A6. In addition, the cost of maintenance, including insurance, on 2002 Audi A6 would be higher. At 4,163 cc (8 cylinders), 2002 Audi A6 is equipped with a bigger engine. In terms of performance, 2002 Audi A6 (296 HP @ 6300 RPM) has 68 more horse power than 2006 BMW Z4. (228 HP @ 5900 RPM). In normal driving conditions, 2002 Audi A6 should accelerate faster than 2006 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2002 Audi A6 weights approximately 495 kg more than 2006 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2002 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2002 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, 2002 Audi A6 (381 Nm @ 2700 RPM) has 80 more torque (in Nm) than 2006 BMW Z4. (301 Nm @ 3500 RPM). This means 2002 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4.
Compare all specifications:
| 2002 Audi A6 | 2006 BMW Z4 | |
| Make | Audi | BMW |
| Model | A6 | Z4 |
| Year Released | 2002 | 2006 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2979 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Horse Power | 296 HP | 228 HP |
| Engine RPM | 6300 RPM | 5900 RPM |
| Torque | 381 Nm | 301 Nm |
| Torque RPM | 2700 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 93 mm | 89.6 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1860 kg | 1365 kg |
| Vehicle Length | 4820 mm | 4100 mm |
| Vehicle Width | 1860 mm | 1790 mm |
| Vehicle Height | 1560 mm | 1310 mm |
| Wheelbase Size | 2760 mm | 2500 mm |
| Fuel Tank Capacity | 82 L | 55 L |
