2009 Audi A5 vs. 1999 Audi A4
To start off, 2009 Audi A5 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 2,698 cc (6 cylinders), 2009 Audi A5 is equipped with a bigger engine. In terms of performance, 2009 Audi A5 (187 HP @ 3500 RPM) has 64 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM). In normal driving conditions, 2009 Audi A5 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A5 weights approximately 219 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.
Because 1999 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Audi A5. In wet, icy, snow, or gravel driving conditions, 1999 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 A5 (400 Nm @ 1400 RPM) has 232 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 2009 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 2009 Audi A5 | 1999 Audi A4 | |
| Make | Audi | Audi |
| Model | A5 | A4 |
| Year Released | 2009 | 1999 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2698 cc | 1781 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 187 HP | 123 HP |
| Engine RPM | 3500 RPM | 5800 RPM |
| Torque | 400 Nm | 168 Nm |
| Torque RPM | 1400 RPM | 3500 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 83.1 mm | 86.4 mm |
| Engine Compression Ratio | 16.8:1 | 10.3:1 |
| Top Speed | 232 km/hour | 201 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 11 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1575 kg | 1356 kg |
| Vehicle Length | 4630 mm | 4480 mm |
| Vehicle Width | 1860 mm | 1740 mm |
| Vehicle Height | 1380 mm | 1420 mm |
| Wheelbase Size | 2760 mm | 2610 mm |
| Fuel Tank Capacity | 65 L | 60 L |
