2011 Porsche 911 vs. 2005 Alfa Romeo 156
To start off, 2011 Porsche 911 is newer by 6 year(s). Which means there will be less support and parts availability for 2005 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2005 Alfa Romeo 156 would be higher. At 3,800 cc (6 cylinders), 2011 Porsche 911 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (385 HP @ 6500 RPM) has 147 more horse power than 2005 Alfa Romeo 156. (238 HP @ 6200 RPM). In normal driving conditions, 2011 Porsche 911 should accelerate faster than 2005 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2011 Porsche 911 weights approximately 17 kg more than 2005 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 Porsche 911 is all wheel drive (AWD), it will have significant more traction and grip than 2005 Alfa Romeo 156. In wet, icy, snow, or gravel driving conditions, 2011 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, 2011 Porsche 911 (420 Nm @ 4400 RPM) has 131 more torque (in Nm) than 2005 Alfa Romeo 156. (289 Nm @ 4800 RPM). This means 2011 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Alfa Romeo 156. 2005 Alfa Romeo 156 has automatic transmission and 2011 Porsche 911 has manual transmission. 2011 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Alfa Romeo 156 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2011 Porsche 911 | 2005 Alfa Romeo 156 | |
| Make | Porsche | Alfa Romeo |
| Model | 911 | 156 |
| Year Released | 2011 | 2005 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Rear | Front |
| Engine Size | 3800 cc | 3179 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | boxer | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 385 HP | 238 HP |
| Engine RPM | 6500 RPM | 6200 RPM |
| Torque | 420 Nm | 289 Nm |
| Torque RPM | 4400 RPM | 4800 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | AWD | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1505 kg | 1488 kg |
| Vehicle Length | 4460 mm | 4310 mm |
| Vehicle Width | 1852 mm | 1750 mm |
| Vehicle Height | 1300 mm | 1330 mm |
| Wheelbase Size | 2350 mm | 2600 mm |
| Fuel Tank Capacity | 67 L | 63 L |
