2002 Audi A4 vs. 2005 Audi A6
To start off, 2005 Audi A6 is newer by 3 year(s). Which means there will be less support and parts availability for 2002 Audi A4. In addition, the cost of maintenance, including insurance, on 2002 Audi A4 would be higher. At 2,393 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (170 HP @ 4000 RPM) has 2 more horse power than 2002 Audi A4. (168 HP @ 5700 RPM) In normal driving conditions, 2005 Audi A6 should accelerate faster than 2002 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 240 kg more than 2002 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2005 Audi A6 (371 Nm @ 1500 RPM) has 146 more torque (in Nm) than 2002 Audi A4. (225 Nm @ 1950 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2002 Audi A4.
Compare all specifications:
| 2002 Audi A4 | 2005 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2002 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 2393 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 168 HP | 170 HP |
| Engine RPM | 5700 RPM | 4000 RPM |
| Torque | 225 Nm | 371 Nm |
| Torque RPM | 1950 RPM | 1500 RPM |
| Engine Bore Size | 81 mm | 78.3 mm |
| Engine Stroke Size | 86.4 mm | 86.4 mm |
| Top Speed | 228 km/hour | 219 km/hour |
| Acceleration 0-100mph | 8.6 seconds | 9.1 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1375 kg | 1615 kg |
| Vehicle Length | 4550 mm | 4800 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2760 mm |
| Fuel Consumption Overall | 8.6 L/100km | 8.1 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
