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 2,967 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 1999 Audi A4 (248 HP @ 5700 RPM) has 18 more horse power than 2009 Audi A6. (230 HP @ 4000 RPM) In normal driving conditions, 1999 Audi A4 should accelerate faster than 2009 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A6 weights approximately 520 kg more than 1999 Audi A4.
Because 2009 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, 2009 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, 2009 Audi A6 (451 Nm @ 1400 RPM) has 131 more torque (in Nm) than 1999 Audi A4. (320 Nm @ 1750 RPM). This means 2009 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4. 1999 Audi A4 has automatic transmission and 2009 Audi A6 has manual transmission. 2009 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A6 | 1999 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2009 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 230 HP | 248 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 451 Nm | 320 Nm |
| Torque RPM | 1400 RPM | 1750 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 91.4 mm | 86.4 mm |
| Top Speed | 247 km/hour | 214 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 9.6 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1820 kg | 1300 kg |
| Vehicle Length | 4920 mm | 4480 mm |
| Vehicle Width | 1860 mm | 1740 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2850 mm | 2620 mm |
| Fuel Tank Capacity | 80 L | 62 L |
