2009 Porsche 911 vs. 1998 Alfa Romeo 155
To start off, 2009 Porsche 911 is newer by 11 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 155 would be higher. At 3,596 cc (6 cylinders), 2009 Porsche 911 is equipped with a bigger engine. In terms of performance, 1998 Alfa Romeo 155 (493 HP @ 11700 RPM) has 172 more horse power than 2009 Porsche 911. (321 HP @ 6800 RPM) In normal driving conditions, 1998 Alfa Romeo 155 should accelerate faster than 2009 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2009 Porsche 911 weights approximately 490 kg more than 1998 Alfa Romeo 155.
Let's talk about torque, 2009 Porsche 911 (370 Nm @ 4250 RPM) has 70 more torque (in Nm) than 1998 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 2009 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 155.
Compare all specifications:
| 2009 Porsche 911 | 1998 Alfa Romeo 155 | |
| Make | Porsche | Alfa Romeo |
| Model | 911 | 155 |
| Year Released | 2009 | 1998 |
| Body Type | Convertible | Sedan |
| Engine Position | Rear | Front |
| Engine Size | 3596 cc | 2499 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | boxer | in-line |
| Horse Power | 321 HP | 493 HP |
| Engine RPM | 6800 RPM | 11700 RPM |
| Torque | 370 Nm | 300 Nm |
| Torque RPM | 4250 RPM | 9500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1530 kg | 1040 kg |
| Vehicle Width | 1320 mm | 1750 mm |
