1999 Audi A4 vs. 2011 Audi A6
To start off, 2011 Audi A6 is newer by 12 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 3,000 cc (6 cylinders), 2011 Audi A6 is equipped with a bigger engine. In terms of performance, 2011 Audi A6 (300 HP @ 5100 RPM) has 38 more horse power than 1999 Audi A4. (262 HP @ 5800 RPM) In normal driving conditions, 2011 Audi A6 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2011 Audi A6 weights approximately 470 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.
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, 2011 Audi A6 (420 Nm @ 2500 RPM) has 20 more torque (in Nm) than 1999 Audi A4. (400 Nm @ 3600 RPM). This means 2011 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4. 2011 Audi A6 has automatic transmission and 1999 Audi A4 has manual transmission. 1999 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2011 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A4 | 2011 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 1999 | 2011 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 262 HP | 300 HP |
| Engine RPM | 5800 RPM | 5100 RPM |
| Torque | 400 Nm | 420 Nm |
| Torque RPM | 3600 RPM | 2500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1400 kg | 1870 kg |
| Vehicle Length | 4480 mm | 4928 mm |
| Vehicle Width | 1740 mm | 1854 mm |
| Vehicle Height | 1420 mm | 1458 mm |
| Wheelbase Size | 2620 mm | 2842 mm |
| Fuel Tank Capacity | 60 L | 80 L |
