2009 Audi A6 vs. 1999 Audi A4
To start off, 2009 Audi A6 is newer by 10 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 2,393 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (168 HP @ 6000 RPM) has 68 more horse power than 1999 Audi A4. (100 HP @ 5300 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 340 kg more than 1999 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, 2009 Audi A6 (231 Nm @ 3200 RPM) has 91 more torque (in Nm) than 1999 Audi A4. (140 Nm @ 3800 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 2009 Audi A6 | 1999 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2009 | 1999 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1594 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 168 HP | 100 HP |
| Engine RPM | 6000 RPM | 5300 RPM |
| Torque | 231 Nm | 140 Nm |
| Torque RPM | 3200 RPM | 3800 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 77.4 mm | 77.5 mm |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1195 kg |
| Vehicle Length | 4800 mm | 4480 mm |
| Vehicle Width | 1820 mm | 1740 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2620 mm |
| Fuel Tank Capacity | 70 L | 62 L |
