2003 Alfa Romeo 156 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 is newer by 2 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 3,596 cc (6 cylinders), 2005 Porsche 911 is equipped with a bigger engine. In terms of performance, 2005 Porsche 911 (316 HP @ 6800 RPM) has 203 more horse power than 2003 Alfa Romeo 156. (113 HP @ 4000 RPM) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2005 Porsche 911 weights approximately 195 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.
Because 2005 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2005 Porsche 911 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, 2005 Porsche 911 (370 Nm @ 4250 RPM) has 95 more torque (in Nm) than 2003 Alfa Romeo 156. (275 Nm @ 2000 RPM). This means 2005 Porsche 911 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 | 2005 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | 156 | 911 |
| Year Released | 2003 | 2005 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 1910 cc | 3596 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 113 HP | 316 HP |
| Engine RPM | 4000 RPM | 6800 RPM |
| Torque | 275 Nm | 370 Nm |
| Torque RPM | 2000 RPM | 4250 RPM |
| Engine Bore Size | 82 mm | 96.1 mm |
| Engine Stroke Size | 90.4 mm | 82.8 mm |
| Engine Compression Ratio | 18.5:1 | 11.3:1 |
| Acceleration 0-100mph | 11 seconds | 5.6 seconds |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1355 kg | 1550 kg |
| Vehicle Length | 4450 mm | 4440 mm |
| Vehicle Width | 1750 mm | 1840 mm |
| Vehicle Height | 1440 mm | 1300 mm |
| Wheelbase Size | 2600 mm | 2360 mm |
| Fuel Consumption | 4.9 L/100km | 8.9 L/100km |
| Fuel Consumption City | 7.9 L/100km | 18.2 L/100km |
| Fuel Consumption Overall | 6 L/100km | 12.1 L/100km |
| Fuel Tank Capacity | 63 L | 64 L |
