2005 Audi S4 vs. 1999 Porsche 911
To start off, 2005 Audi S4 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Porsche 911. In addition, the cost of maintenance, including insurance, on 1999 Porsche 911 would be higher. At 4,163 cc (8 cylinders), 2005 Audi S4 is equipped with a bigger engine. In terms of performance, 1999 Porsche 911 (414 HP @ 6000 RPM) has 74 more horse power than 2005 Audi S4. (340 HP @ 6200 RPM) In normal driving conditions, 1999 Porsche 911 should accelerate faster than 2005 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi S4 weights approximately 242 kg more than 1999 Porsche 911.
Let's talk about torque, 1999 Porsche 911 (560 Nm) has 150 more torque (in Nm) than 2005 Audi S4. (410 Nm). This means 1999 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S4.
Compare all specifications:
| 2005 Audi S4 | 1999 Porsche 911 | |
| Make | Audi | Porsche |
| Model | S4 | 911 |
| Year Released | 2005 | 1999 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 3595 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 340 HP | 414 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 410 Nm | 560 Nm |
| Engine Bore Size | 85 mm | 100 mm |
| Engine Stroke Size | 93 mm | 76.4 mm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1782 kg | 1540 kg |
| Vehicle Length | 4550 mm | 4440 mm |
| Vehicle Width | 1770 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2760 mm | 2360 mm |
| Fuel Tank Capacity | 66 L | 64 L |
