2005 Audi A8 vs. 2012 Audi S5
To start off, 2012 Audi S5 is newer by 7 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 3,936 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2012 Audi S5 (333 HP @ 5500 RPM) has 62 more horse power than 2005 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 2012 Audi S5 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2012 Audi S5 weights approximately 185 kg more than 2005 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 A8 (650 Nm @ 1800 RPM) has 210 more torque (in Nm) than 2012 Audi S5. (440 Nm @ 2900 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2012 Audi S5.
Compare all specifications:
| 2005 Audi A8 | 2012 Audi S5 | |
| Make | Audi | Audi |
| Model | A8 | S5 |
| Year Released | 2005 | 2012 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 3000 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 333 HP |
| Engine RPM | 3750 RPM | 5500 RPM |
| Torque | 650 Nm | 440 Nm |
| Torque RPM | 1800 RPM | 2900 RPM |
| Fuel Type | Diesel | Gasoline |
| Drive Type | 4WD | AWD |
| Transmission Type | Automatic | 7-speed automated manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1955 kg |
| Vehicle Length | 5190 mm | 4623 mm |
| Vehicle Width | 1900 mm | 1852 mm |
| Vehicle Height | 1460 mm | 1382 mm |
| Wheelbase Size | 3080 mm | 2751 mm |
| Fuel Tank Capacity | 90 L | 64 L |
