1996 Alfa Romeo 155 vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 15 year(s). Which means there will be less support and parts availability for 1996 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1996 Alfa Romeo 155 would be higher. At 4,000 cc (6 cylinders), 2011 Porsche 911 is equipped with a bigger engine. In terms of performance, 2011 Porsche 911 (500 HP @ 8250 RPM) has 7 more horse power than 1996 Alfa Romeo 155. (493 HP @ 11700 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 1996 Alfa Romeo 155. With that said, vehicle weight also plays an important factor in acceleration. 2011 Porsche 911 weights approximately 320 kg more than 1996 Alfa Romeo 155. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2011 Porsche 911 (459 Nm @ 5750 RPM) has 159 more torque (in Nm) than 1996 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 2011 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1996 Alfa Romeo 155.
Compare all specifications:
| 1996 Alfa Romeo 155 | 2011 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | 155 | 911 |
| Year Released | 1996 | 2011 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2499 cc | 4000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 493 HP | 500 HP |
| Engine RPM | 11700 RPM | 8250 RPM |
| Torque | 300 Nm | 459 Nm |
| Torque RPM | 9500 RPM | 5750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1040 kg | 1360 kg |
