1997 Alfa Romeo 155 vs. 1991 Mazda 121
To start off, 1997 Alfa Romeo 155 is newer by 6 year(s). Which means there will be less support and parts availability for 1991 Mazda 121. In addition, the cost of maintenance, including insurance, on 1991 Mazda 121 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 422 more horse power than 1991 Mazda 121. (71 HP @ 6000 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 1991 Mazda 121. With that said, vehicle weight also plays an important factor in acceleration. 1997 Alfa Romeo 155 weights approximately 140 kg more than 1991 Mazda 121. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1997 Alfa Romeo 155 (300 Nm @ 9500 RPM) has 196 more torque (in Nm) than 1991 Mazda 121. (104 Nm @ 3700 RPM). This means 1997 Alfa Romeo 155 will have an easier job in driving up hills or pulling heavy equipment than 1991 Mazda 121.
Compare all specifications:
| 1997 Alfa Romeo 155 | 1991 Mazda 121 | |
| Make | Alfa Romeo | Mazda |
| Model | 155 | 121 |
| Year Released | 1997 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 1323 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 493 HP | 71 HP |
| Engine RPM | 11700 RPM | 6000 RPM |
| Torque | 300 Nm | 104 Nm |
| Torque RPM | 9500 RPM | 3700 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1040 kg | 900 kg |
| Vehicle Width | 1750 mm | 1660 mm |
