2005 Audi S4 vs. 2011 Audi A8
To start off, 2011 Audi A8 is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Audi S4. In addition, the cost of maintenance, including insurance, on 2005 Audi S4 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 2011 Audi A8 (345 HP @ 4000 RPM) has 5 more horse power than 2005 Audi S4. (340 HP @ 4000 RPM) In normal driving conditions, 2011 Audi A8 should accelerate faster than 2005 Audi S4.
Let's talk about torque, 2011 Audi A8 (800 Nm) has 390 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2011 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 2011 Audi A8 | |
| Make | Audi | Audi |
| Model | S4 | A8 |
| Year Released | 2005 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4134 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 345 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 410 Nm | 800 Nm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4550 mm | 5136 mm |
| Vehicle Width | 1770 mm | 1948 mm |
| Vehicle Height | 1430 mm | 1461 mm |
| Wheelbase Size | 2770 mm | 2992 mm |
| Fuel Tank Capacity | 66 L | 90 L |
