1999 Audi A4 vs. 2004 Porsche 911
To start off, 2004 Porsche 911 is newer by 5 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 3,989 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (476 HP @ 5700 RPM) has 353 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 285 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 2004 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 2004 Porsche 911. However, in wet, icy, snow, or gravel driving conditions, 1999 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, 2004 Porsche 911 (640 Nm @ 3500 RPM) has 467 more torque (in Nm) than 1999 Audi A4. (173 Nm @ 3950 RPM). This means 2004 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 | 2004 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 1999 | 2004 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1781 cc | 3989 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 123 HP | 476 HP |
| Engine RPM | 5800 RPM | 5700 RPM |
| Torque | 173 Nm | 640 Nm |
| Torque RPM | 3950 RPM | 3500 RPM |
| Engine Compression Ratio | 10.3:1 | 9.4:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 12.3 seconds | 4 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1230 kg | 1515 kg |
| Vehicle Length | 4480 mm | 4460 mm |
| Vehicle Width | 1740 mm | 1840 mm |
| Vehicle Height | 1420 mm | 1280 mm |
| Wheelbase Size | 2520 mm | 2360 mm |
| Fuel Consumption Overall | 13 L/100km | 12.8 L/100km |
| Fuel Tank Capacity | 60 L | 89 L |
