1997 Alfa Romeo 155 vs. 2007 Porsche 911
To start off, 2007 Porsche 911 is newer by 10 year(s). Which means there will be less support and parts availability for 1997 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1997 Alfa Romeo 155 would be higher. At 3,824 cc (6 cylinders), 2007 Porsche 911 is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo 155 (493 HP @ 11700 RPM) has 143 more horse power than 2007 Porsche 911. (350 HP @ 6600 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 2007 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche 911 weights approximately 495 kg more than 1997 Alfa Romeo 155.
Let's talk about torque, 2007 Porsche 911 (400 Nm @ 4600 RPM) has 100 more torque (in Nm) than 1997 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 2007 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1997 Alfa Romeo 155.
Compare all specifications:
| 1997 Alfa Romeo 155 | 2007 Porsche 911 | |
| Make | Alfa Romeo | Porsche |
| Model | 155 | 911 |
| Year Released | 1997 | 2007 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2499 cc | 3824 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 493 HP | 350 HP |
| Engine RPM | 11700 RPM | 6600 RPM |
| Torque | 300 Nm | 400 Nm |
| Torque RPM | 9500 RPM | 4600 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1040 kg | 1535 kg |
| Vehicle Width | 1750 mm | 1860 mm |
