2009 Alfa Romeo GT vs. 2005 Porsche 911
To start off, 2009 Alfa Romeo GT is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Porsche 911. In addition, the cost of maintenance, including insurance, on 2005 Porsche 911 would be higher. At 3,605 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (445 HP @ 6000 RPM) has 208 more horse power than 2009 Alfa Romeo GT. (237 HP @ 6200 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2009 Alfa Romeo GT. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 105 kg more than 2009 Alfa Romeo GT. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Porsche 911 (620 Nm) has 320 more torque (in Nm) than 2009 Alfa Romeo GT. (300 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2009 Alfa Romeo GT.
Compare all specifications:
| 2009 Alfa Romeo GT | 2005 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | GT | 911 |
| Year Released | 2009 | 2005 |
| Body Type | Coupe | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3179 cc | 3605 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 237 HP | 445 HP |
| Engine RPM | 6200 RPM | 6000 RPM |
| Torque | 300 Nm | 620 Nm |
| Engine Bore Size | 93.1 mm | 100 mm |
| Engine Stroke Size | 78 mm | 76 mm |
| Engine Compression Ratio | 10.0:1 | 9.4:1 |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1590 kg |
| Vehicle Length | 4500 mm | 4440 mm |
| Vehicle Width | 1770 mm | 1840 mm |
| Vehicle Height | 1370 mm | 1300 mm |
| Wheelbase Size | 2600 mm | 2360 mm |
| Fuel Consumption Overall | 12.4 L/100km | 13.1 L/100km |
| Fuel Tank Capacity | 63 L | 63 L |
