2007 Audi S4 vs. 1975 Porsche 911
To start off, 2007 Audi S4 is newer by 32 year(s). Which means there will be less support and parts availability for 1975 Porsche 911. In addition, the cost of maintenance, including insurance, on 1975 Porsche 911 would be higher. At 4,163 cc (8 cylinders), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (341 HP @ 7000 RPM) has 81 more horse power than 1975 Porsche 911. (260 HP @ 5500 RPM). In normal driving conditions, 2007 Audi S4 should accelerate faster than 1975 Porsche 911.
Let's talk about torque, 2007 Audi S4 (410 Nm @ 3500 RPM) has 67 more torque (in Nm) than 1975 Porsche 911. (343 Nm @ 4000 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1975 Porsche 911.
Compare all specifications:
| 2007 Audi S4 | 1975 Porsche 911 | |
| Make | Audi | Porsche |
| Model | S4 | 911 |
| Year Released | 2007 | 1975 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 2994 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 341 HP | 260 HP |
| Engine RPM | 7000 RPM | 5500 RPM |
| Torque | 410 Nm | 343 Nm |
| Torque RPM | 3500 RPM | 4000 RPM |
| Engine Bore Size | 84.6 mm | 95.1 mm |
| Engine Stroke Size | 92.7 mm | 70.4 mm |
| Engine Compression Ratio | 11.0:1 | 6.5:1 |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 4590 mm | 4300 mm |
| Vehicle Width | 1730 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1330 mm |
| Wheelbase Size | 2650 mm | 2270 mm |
| Fuel Tank Capacity | 63 L | 79 L |
