2005 Audi S4 vs. 2011 Audi S5
To start off, 2011 Audi S5 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 4,200 cc (8 cylinders), 2011 Audi S5 is equipped with a bigger engine. In terms of performance, 2011 Audi S5 (354 HP @ 7000 RPM) has 14 more horse power than 2005 Audi S4. (340 HP @ 4000 RPM) In normal driving conditions, 2011 Audi S5 should accelerate faster than 2005 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 20 kg more than 2011 Audi S5.
Let's talk about torque, 2011 Audi S5 (440 Nm) has 30 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 2011 Audi S5 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 S5 | |
| Make | Audi | Audi |
| Model | S4 | S5 |
| Year Released | 2005 | 2011 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4200 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 354 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 410 Nm | 440 Nm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1770 kg | 1750 kg |
| Vehicle Length | 4550 mm | 4625 mm |
| Vehicle Width | 1770 mm | 1854 mm |
| Vehicle Height | 1430 mm | 1372 mm |
| Wheelbase Size | 2770 mm | 2751 mm |
| Fuel Consumption | 9.8 L/100km | 10.7 L/100km |
| Fuel Consumption City | 13.1 L/100km | 16.8 L/100km |
| Fuel Tank Capacity | 66 L | 63 L |
