1999 Audi A4 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 3,600 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (414 HP @ 6000 RPM) has 162 more horse power than 1999 Audi A4. (252 HP @ 4150 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 445 kg more than 1999 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 1999 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 (560 Nm @ 2700 RPM) has 230 more torque (in Nm) than 1999 Audi A4. (330 Nm @ 1900 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4. 1999 Audi A4 has automatic transmission and 2005 Porsche 911 has manual transmission. 2005 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1999 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Audi A4 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 1999 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 1896 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 252 HP | 414 HP |
| Engine RPM | 4150 RPM | 6000 RPM |
| Torque | 330 Nm | 560 Nm |
| Torque RPM | 1900 RPM | 2700 RPM |
| Engine Bore Size | 79.5 mm | 100 mm |
| Engine Stroke Size | 95.5 mm | 76.4 mm |
| Engine Compression Ratio | 19.5:1 | 9.4:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 192 km/hour | 305 km/hour |
| Acceleration 0-100mph | 13.1 seconds | 4.3 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1295 kg | 1740 kg |
| Vehicle Length | 4480 mm | 4440 mm |
| Vehicle Width | 1740 mm | 1840 mm |
| Vehicle Height | 1420 mm | 1300 mm |
| Wheelbase Size | 2620 mm | 2360 mm |
| Fuel Tank Capacity | 62 L | 64 L |
