2008 Audi A5 vs. 2009 Audi A8
To start off, 2009 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi A5. In addition, the cost of maintenance, including insurance, on 2008 Audi A5 would be higher. At 3,197 cc (6 cylinders), 2008 Audi A5 is equipped with a bigger engine. In terms of performance, 2008 Audi A5 (262 HP @ 6500 RPM) has 45 more horse power than 2009 Audi A8. (217 HP @ 6300 RPM). In normal driving conditions, 2008 Audi A5 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 60 kg more than 2008 Audi A5.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 2008 Audi A5 (330 Nm @ 3000 RPM) has 30 more torque (in Nm) than 2009 Audi A8. (300 Nm @ 8200 RPM). This means 2008 Audi A5 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2008 Audi A5 | 2009 Audi A8 | |
| Make | Audi | Audi |
| Model | A5 | A8 |
| Year Released | 2008 | 2009 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3197 cc | 2975 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 262 HP | 217 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 330 Nm | 300 Nm |
| Torque RPM | 3000 RPM | 8200 RPM |
| Engine Compression Ratio | 10.5:1 | 11.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 242 km/hour |
| Acceleration 0-100mph | 6.1 seconds | 8.3 seconds |
| Drive Type | Front | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1610 kg | 1670 kg |
| Vehicle Length | 4630 mm | 5190 mm |
| Vehicle Width | 1860 mm | 1900 mm |
| Vehicle Height | 1380 mm | 1460 mm |
| Wheelbase Size | 2760 mm | 3080 mm |
| Fuel Consumption Overall | 8.7 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 80 L | 90 L |
