2003 Alfa Romeo 147 vs. 2004 Porsche 911
To start off, 2004 Porsche 911 is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 147. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 147 would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (340 HP @ 6000 RPM) has 236 more horse power than 2003 Alfa Romeo 147. (104 HP @ 5600 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 2003 Alfa Romeo 147. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche 911 weights approximately 77 kg more than 2003 Alfa Romeo 147. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 Porsche 911 (370 Nm) has 224 more torque (in Nm) than 2003 Alfa Romeo 147. (146 Nm). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 147.
Compare all specifications:
| 2003 Alfa Romeo 147 | 2004 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | 147 | 911 |
| Year Released | 2003 | 2004 |
| Engine Position | Front | Rear |
| Engine Size | 1598 cc | 3589 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 104 HP | 340 HP |
| Engine RPM | 5600 RPM | 6000 RPM |
| Torque | 146 Nm | 370 Nm |
| Engine Bore Size | 82 mm | 96 mm |
| Engine Stroke Size | 75.7 mm | 83 mm |
| Engine Compression Ratio | 10.3:1 | 11.3:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 3 doors | 2 doors |
| Vehicle Weight | 1265 kg | 1342 kg |
| Vehicle Length | 4180 mm | 4440 mm |
| Vehicle Width | 1740 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1310 mm |
| Wheelbase Size | 2550 mm | 2360 mm |
| Fuel Consumption Overall | 8.1 L/100km | 11.4 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
