2003 Alfa Romeo 156 vs. 2004 Porsche Carrera GT
To start off, 2004 Porsche Carrera GT is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 5,736 cc (10 cylinders), 2004 Porsche Carrera GT is equipped with a bigger engine. In terms of performance, 2004 Porsche Carrera GT (605 HP @ 6000 RPM) has 486 more horse power than 2003 Alfa Romeo 156. (119 HP @ 6200 RPM) In normal driving conditions, 2004 Porsche Carrera GT should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 Porsche Carrera GT weights approximately 40 kg more than 2003 Alfa Romeo 156. 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 Carrera GT (591 Nm) has 445 more torque (in Nm) than 2003 Alfa Romeo 156. (146 Nm). This means 2004 Porsche Carrera GT will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2004 Porsche Carrera GT | |
| Make | Alfa Romeo | Porsche |
| Model | 156 | Carrera GT |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 1598 cc | 5736 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 119 HP | 605 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 146 Nm | 591 Nm |
| Engine Bore Size | 82 mm | 98 mm |
| Engine Stroke Size | 75.6 mm | 76 mm |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1340 kg | 1380 kg |
| Vehicle Length | 4440 mm | 4620 mm |
| Vehicle Width | 1750 mm | 1930 mm |
| Vehicle Height | 1400 mm | 1170 mm |
| Wheelbase Size | 2600 mm | 2740 mm |
| Fuel Tank Capacity | 63 L | 92 L |
