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 @ 5100 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. 2007 Audi A4 weights approximately 38 kg more than 2003 Porsche 911.
Let's talk about torque, 2003 Porsche 911 (621 Nm @ 2700 RPM) has 291 more torque (in Nm) than 2007 Audi A4. (330 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 | Convertible | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 3123 cc | 3600 cc |
| Horse Power | 252 HP | 443 HP |
| Engine RPM | 5100 RPM | 6000 RPM |
| Torque | 330 Nm | 621 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 | 250 km/hour | 307 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 4.3 seconds |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1698 kg | 1660 kg |
| Vehicle Length | 4580 mm | 4440 mm |
| Vehicle Width | 1400 mm | 1840 mm |
| Vehicle Height | 1780 mm | 1300 mm |
| Wheelbase Size | 2660 mm | 2360 mm |
| Fuel Consumption Overall | 11 L/100km | 13.3 L/100km |
| Fuel Tank Capacity | 70 L | 64 L |
