1999 Audi A4 vs. 2004 Audi A6
To start off, 2004 Audi A6 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 2,671 cc (6 cylinders), 2004 Audi A6 is equipped with a bigger engine. In terms of performance, both vehicles can yield 247 horse power. So under normal driving conditions, the acceleration of both vehicles should be relatively similar. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 522 kg more than 1999 Audi A4.
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, 2004 Audi A6 (350 Nm) has 30 more torque (in Nm) than 1999 Audi A4. (320 Nm). This means 2004 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 1999 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 2671 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 247 HP | 247 HP |
| Engine RPM | 5300 RPM | 6300 RPM |
| Torque | 320 Nm | 350 Nm |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.4 mm | 86 mm |
| Engine Compression Ratio | 10.3:1 | 9.3:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1200 kg | 1722 kg |
| Vehicle Length | 4480 mm | 4880 mm |
| Vehicle Width | 1740 mm | 1940 mm |
| Vehicle Height | 1420 mm | 1460 mm |
| Wheelbase Size | 2620 mm | 2660 mm |
| Fuel Tank Capacity | 62 L | 70 L |
