2005 Audi A4 vs. 1998 Porsche 911
To start off, 2005 Audi A4 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Porsche 911. In addition, the cost of maintenance, including insurance, on 1998 Porsche 911 would be higher. At 3,600 cc (6 cylinders), 1998 Porsche 911 is equipped with a bigger engine. In terms of performance, 1998 Porsche 911 (443 HP @ 6000 RPM) has 273 more horse power than 2005 Audi A4. (170 HP @ 6500 RPM) In normal driving conditions, 1998 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 200 kg more than 1998 Porsche 911.
Because 1998 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, 1998 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, 1998 Porsche 911 (583 Nm) has 353 more torque (in Nm) than 2005 Audi A4. (230 Nm). This means 1998 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 | 1998 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2005 | 1998 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1786 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 170 HP | 443 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 230 Nm | 583 Nm |
| Engine Bore Size | 81 mm | 100 mm |
| Engine Stroke Size | 86 mm | 76.4 mm |
| Engine Compression Ratio | 9.3:1 | 8.0:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1656 kg | 1456 kg |
| Vehicle Length | 4580 mm | 4270 mm |
| Vehicle Width | 1780 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1270 mm |
| Wheelbase Size | 2770 mm | 2280 mm |
| Fuel Tank Capacity | 70 L | 92 L |
