2009 Audi A4 vs. 2003 Porsche Boxster
To start off, 2009 Audi A4 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Porsche Boxster. In addition, the cost of maintenance, including insurance, on 2003 Porsche Boxster would be higher. At 3,179 cc (6 cylinders), 2003 Porsche Boxster is equipped with a bigger engine. In terms of performance, 2003 Porsche Boxster (262 HP @ 6200 RPM) has 101 more horse power than 2009 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 2003 Porsche Boxster should accelerate faster than 2009 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A4 weights approximately 250 kg more than 2003 Porsche Boxster.
Because 2009 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Porsche Boxster. In wet, icy, snow, or gravel driving conditions, 2009 Audi A4 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, 2003 Porsche Boxster (310 Nm @ 4600 RPM) has 85 more torque (in Nm) than 2009 Audi A4. (225 Nm @ 1950 RPM). This means 2003 Porsche Boxster will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A4.
Compare all specifications:
| 2009 Audi A4 | 2003 Porsche Boxster | |
| Make | Audi | Porsche |
| Model | A4 | Boxster |
| Year Released | 2009 | 2003 |
| Body Type | Convertible | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1781 cc | 3179 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 161 HP | 262 HP |
| Engine RPM | 5700 RPM | 6200 RPM |
| Torque | 225 Nm | 310 Nm |
| Torque RPM | 1950 RPM | 4600 RPM |
| Engine Bore Size | 81.1 mm | 93 mm |
| Engine Stroke Size | 86.4 mm | 78 mm |
| Engine Compression Ratio | 9.0:1 | 11.0:1 |
| Acceleration 0-100mph | 9.5 seconds | 5.7 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1630 kg | 1380 kg |
| Vehicle Length | 4580 mm | 4330 mm |
| Vehicle Width | 1780 mm | 1790 mm |
| Vehicle Height | 1400 mm | 1290 mm |
| Wheelbase Size | 2660 mm | 2420 mm |
| Fuel Consumption Overall | 9.4 L/100km | 10.5 L/100km |
| Fuel Tank Capacity | 66 L | 64 L |
