2009 Audi A4 vs. 1975 Porsche 911
To start off, 2009 Audi A4 is newer by 34 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 2,994 cc (6 cylinders), 1975 Porsche 911 is equipped with a bigger engine. In terms of performance, 1975 Porsche 911 (260 HP @ 5500 RPM) has 119 more horse power than 2009 Audi A4. (141 HP @ 4200 RPM) In normal driving conditions, 1975 Porsche 911 should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 1975 Porsche 911 weights approximately 265 kg more than 2009 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1975 Porsche 911 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1975 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A4, being front wheel drive (FWD), will offer much better control with better grip. 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, 1975 Porsche 911 (343 Nm @ 4000 RPM) has 23 more torque (in Nm) than 2009 Audi A4. (320 Nm @ 1750 RPM). This means 1975 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4. 2009 Audi A4 has automatic transmission and 1975 Porsche 911 has manual transmission. 1975 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A4 | 1975 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2009 | 1975 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1968 cc | 2994 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 141 HP | 260 HP |
| Engine RPM | 4200 RPM | 5500 RPM |
| Torque | 320 Nm | 343 Nm |
| Torque RPM | 1750 RPM | 4000 RPM |
| Engine Compression Ratio | 16.5:1 | 6.5:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 930 kg | 1195 kg |
| Vehicle Length | 4710 mm | 4300 mm |
| Vehicle Width | 2010 mm | 1780 mm |
| Vehicle Height | 1430 mm | 1330 mm |
| Wheelbase Size | 2810 mm | 2270 mm |
| Fuel Tank Capacity | 65 L | 79 L |
