1992 Alfa Romeo 155 vs. 2011 Porsche 911
To start off, 2011 Porsche 911 is newer by 19 year(s). Which means there will be less support and parts availability for 1992 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1992 Alfa Romeo 155 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 (500 HP @ 6000 RPM) has 7 more horse power than 1992 Alfa Romeo 155. (493 HP @ 11700 RPM) In normal driving conditions, 2011 Porsche 911 should accelerate faster than 1992 Alfa Romeo 155. With that said, vehicle weight also plays an important factor in acceleration. 2011 Porsche 911 weights approximately 605 kg more than 1992 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 (650 Nm @ 1950 RPM) has 350 more torque (in Nm) than 1992 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 1992 Alfa Romeo 155.
Compare all specifications:
| 1992 Alfa Romeo 155 | 2011 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | 155 | 911 |
| Year Released | 1992 | 2011 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2499 cc | 3800 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 493 HP | 500 HP |
| Engine RPM | 11700 RPM | 6000 RPM |
| Torque | 300 Nm | 650 Nm |
| Torque RPM | 9500 RPM | 1950 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1040 kg | 1645 kg |
