1999 Audi A4 vs. 2009 Audi A8
To start off, 2009 Audi A8 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 3,696 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (276 HP) has 126 more horse power than 1999 Audi A4. (150 HP) In normal driving conditions, 2009 Audi A8 should accelerate faster than 1999 Audi A4.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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 A8 (360 Nm) has 150 more torque (in Nm) than 1999 Audi A4. (210 Nm). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4. 2009 Audi A8 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. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A4 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 1999 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1779 cc | 3696 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 150 HP | 276 HP |
| Torque | 210 Nm | 360 Nm |
| Engine Bore Size | 81 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 82.4 mm |
| Engine Compression Ratio | 9.5:1 | 11.0:1 |
| Top Speed | 220 km/hour | 250 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4480 mm | 5060 mm |
| Vehicle Width | 1740 mm | 1900 mm |
| Vehicle Height | 1420 mm | 1450 mm |
| Wheelbase Size | 2610 mm | 2950 mm |
