2007 Audi A4 vs. 2003 Porsche 911
To start off, 2007 Audi A4 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Porsche 911. In addition, the cost of maintenance, including insurance, on 2003 Porsche 911 would be higher. At 3,600 cc (6 cylinders), 2003 Porsche 911 is equipped with a bigger engine. In terms of performance, 2003 Porsche 911 (443 HP @ 6000 RPM) has 191 more horse power than 2007 Audi A4. (252 HP @ 6500 RPM) In normal driving conditions, 2003 Porsche 911 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Porsche 911 weights approximately 94 kg more than 2007 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2003 Porsche 911 (620 Nm @ 2700 RPM) has 289 more torque (in Nm) than 2007 Audi A4. (331 Nm @ 3250 RPM). This means 2003 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4.
Compare all specifications:
| 2007 Audi A4 | 2003 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A4 | 911 |
| Year Released | 2007 | 2003 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 3123 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Horse Power | 252 HP | 443 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 331 Nm | 620 Nm |
| Torque RPM | 3250 RPM | 2700 RPM |
| Engine Bore Size | 84.5 mm | 100 mm |
| Engine Stroke Size | 92.8 mm | 76.4 mm |
| Top Speed | 245 km/hour | 300 km/hour |
| Acceleration 0-100mph | 7 seconds | 4.6 seconds |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1610 kg | 1704 kg |
| Vehicle Length | 4590 mm | 4440 mm |
| Vehicle Width | 1780 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2650 mm | 2360 mm |
| Fuel Consumption Overall | 9.6 L/100km | 14.2 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
