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 3,594 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (320 HP @ 6800 RPM) has 157 more horse power than 1999 Audi A4. (163 HP @ 6000 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 130 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 (370 Nm @ 4250 RPM) has 136 more torque (in Nm) than 1999 Audi A4. (234 Nm @ 3200 RPM). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 1999 Audi A4 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 1999 | 2005 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2393 cc | 3594 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 163 HP | 320 HP |
| Engine RPM | 6000 RPM | 6800 RPM |
| Torque | 234 Nm | 370 Nm |
| Torque RPM | 3200 RPM | 4250 RPM |
| Engine Bore Size | 81 mm | 96 mm |
| Engine Stroke Size | 77.4 mm | 82.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1450 kg |
| Vehicle Length | 4480 mm | 4430 mm |
| Vehicle Width | 1740 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1320 mm |
| Wheelbase Size | 2610 mm | 2360 mm |
| Fuel Tank Capacity | 70 L | 64 L |
