1999 Audi A6 vs. 2005 Audi RS6
To start off, 2005 Audi RS6 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Audi A6. In addition, the cost of maintenance, including insurance, on 1999 Audi A6 would be higher. At 4,171 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 5700 RPM) has 295 more horse power than 1999 Audi A6. (149 HP @ 5700 RPM) In normal driving conditions, 2005 Audi RS6 should accelerate faster than 1999 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 445 kg more than 1999 Audi A6. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1999 Audi A6. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS6 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, 2005 Audi RS6 (560 Nm @ 1950 RPM) has 350 more torque (in Nm) than 1999 Audi A6. (210 Nm @ 1750 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A6. 2005 Audi RS6 has automatic transmission and 1999 Audi A6 has manual transmission. 1999 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi RS6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A6 | 2005 Audi RS6 | |
| Make | Audi | Audi |
| Model | A6 | RS6 |
| Year Released | 1999 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 4171 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 149 HP | 444 HP |
| Engine RPM | 5700 RPM | 5700 RPM |
| Torque | 210 Nm | 560 Nm |
| Torque RPM | 1750 RPM | 1950 RPM |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1380 kg | 1825 kg |
| Vehicle Length | 4800 mm | 4800 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 2770 mm |
| Fuel Consumption Overall | 13 L/100km | 14.6 L/100km |
| Fuel Tank Capacity | 70 L | 82 L |
