1998 Audi A6 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Audi A6. In addition, the cost of maintenance, including insurance, on 1998 Audi A6 would be higher. At 1,896 cc (4 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 1998 Audi A6 (123 HP @ 5800 RPM) has 9 more horse power than 2009 Audi A4. (114 HP @ 4000 RPM). In normal driving conditions, 1998 Audi A6 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1998 Audi A6 weights approximately 15 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 1998 Audi A6. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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 A4 (285 Nm @ 1900 RPM) has 117 more torque (in Nm) than 1998 Audi A6. (168 Nm @ 3500 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Audi A6.
Compare all specifications:
| 1998 Audi A6 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 1998 | 2009 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 1896 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 123 HP | 114 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 168 Nm | 285 Nm |
| Torque RPM | 3500 RPM | 1900 RPM |
| Engine Bore Size | 81.1 mm | 79.6 mm |
| Engine Stroke Size | 86.4 mm | 95.5 mm |
| Engine Compression Ratio | 10.3:1 | 19.0:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1445 kg | 1430 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2760 mm | 2660 mm |
