1997 Alfa Romeo 155 vs. 2007 BMW 523
To start off, 2007 BMW 523 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 2,499 cc (6 cylinders), 1997 Alfa Romeo 155 is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo 155 (493 HP @ 11700 RPM) has 318 more horse power than 2007 BMW 523. (175 HP @ 5800 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 2007 BMW 523. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 523 weights approximately 450 kg more than 1997 Alfa Romeo 155.
Let's talk about torque, 1997 Alfa Romeo 155 (300 Nm @ 9500 RPM) has 70 more torque (in Nm) than 2007 BMW 523. (230 Nm @ 3500 RPM). This means 1997 Alfa Romeo 155 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 523.
Compare all specifications:
| 1997 Alfa Romeo 155 | 2007 BMW 523 | |
| Make | Alfa Romeo | BMW |
| Model | 155 | 523 |
| Year Released | 1997 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 493 HP | 175 HP |
| Engine RPM | 11700 RPM | 5800 RPM |
| Torque | 300 Nm | 230 Nm |
| Torque RPM | 9500 RPM | 3500 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1040 kg | 1490 kg |
| Vehicle Width | 1750 mm | 1470 mm |
