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 1,984 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (169 HP) has 46 more horse power than 1999 Audi A4. (123 HP). 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 45 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 (280 Nm @ 1800 RPM) has 107 more torque (in Nm) than 1999 Audi A4. (173 Nm @ 3950 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 | 1984 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 169 HP | 123 HP |
| Torque | 280 Nm | 173 Nm |
| Torque RPM | 1800 RPM | 3950 RPM |
| Engine Compression Ratio | 11.5:1 | 10.3:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 223 km/hour | 205 km/hour |
| Acceleration 0-100mph | 8.7 seconds | 12.3 seconds |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1230 kg |
| Vehicle Length | 4800 mm | 4480 mm |
| Vehicle Width | 1820 mm | 1740 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2770 mm | 2520 mm |
| Fuel Consumption Overall | 8.1 L/100km | 13 L/100km |
| Fuel Tank Capacity | 70 L | 60 L |
