2005 Audi A4 vs. 2005 Porsche 911
To start off, both 2005 Audi A4 and 2005 Porsche 911 were released in the same year (2005). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 3,605 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (444 HP @ 5700 RPM) has 282 more horse power than 2005 Audi A4. (162 HP @ 4000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A4 weights approximately 60 kg more than 2005 Porsche 911.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A4. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 will offer significantly more control. 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, 2005 Porsche 911 (620 Nm @ 3500 RPM) has 270 more torque (in Nm) than 2005 Audi A4. (350 Nm @ 1500 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2005 | 2005 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 2496 cc | 3605 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 162 HP | 444 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 350 Nm | 620 Nm |
| Torque RPM | 1500 RPM | 3500 RPM |
| Engine Bore Size | 78.3 mm | 100 mm |
| Engine Stroke Size | 86.4 mm | 76 mm |
| Engine Compression Ratio | 18.0:1 | 9.4:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 225 km/hour | 307 km/hour |
| Acceleration 0-100mph | 9.7 seconds | 4.6 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1720 kg | 1660 kg |
| Vehicle Length | 4580 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1840 mm |
| Vehicle Height | 1400 mm | 1300 mm |
| Wheelbase Size | 2770 mm | 2360 mm |
| Fuel Consumption Overall | 7.3 L/100km | 13.3 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
