2008 Audi A6 vs. 1999 Audi A4
To start off, 2008 Audi A6 is newer by 9 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 2,698 cc (6 cylinders), 2008 Audi A6 is equipped with a bigger engine. In terms of performance, 2008 Audi A6 (178 HP @ 3300 RPM) has 55 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM). In normal driving conditions, 2008 Audi A6 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A4 weights approximately 70 kg more than 2008 Audi A6.
Because 2008 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Audi A4. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi A6 (381 Nm @ 1400 RPM) has 208 more torque (in Nm) than 1999 Audi A4. (173 Nm @ 3950 RPM). This means 2008 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 2008 Audi A6 | 1999 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2008 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 178 HP | 123 HP |
| Engine RPM | 3300 RPM | 5800 RPM |
| Torque | 381 Nm | 173 Nm |
| Torque RPM | 1400 RPM | 3950 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 83.1 mm | 86.4 mm |
| Fuel Type | Diesel | Gasoline |
| Top Speed | 228 km/hour | 205 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 12.3 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 1230 kg |
| Vehicle Length | 4920 mm | 4480 mm |
| Vehicle Width | 1860 mm | 1740 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2850 mm | 2520 mm |
| Fuel Consumption Overall | 8.1 L/100km | 13 L/100km |
| Fuel Tank Capacity | 80 L | 60 L |
