1997 Alfa Romeo 155 vs. 1986 Mercedes-Benz 420
To start off, 1997 Alfa Romeo 155 is newer by 11 year(s). Which means there will be less support and parts availability for 1986 Mercedes-Benz 420. In addition, the cost of maintenance, including insurance, on 1986 Mercedes-Benz 420 would be higher. At 4,196 cc (8 cylinders), 1986 Mercedes-Benz 420 is equipped with a bigger engine. In terms of performance, 1997 Alfa Romeo 155 (493 HP @ 11700 RPM) has 262 more horse power than 1986 Mercedes-Benz 420. (231 HP @ 5400 RPM). In normal driving conditions, 1997 Alfa Romeo 155 should accelerate faster than 1986 Mercedes-Benz 420. With that said, vehicle weight also plays an important factor in acceleration. 1986 Mercedes-Benz 420 weights approximately 585 kg more than 1997 Alfa Romeo 155.
Let's talk about torque, 1986 Mercedes-Benz 420 (327 Nm @ 4000 RPM) has 27 more torque (in Nm) than 1997 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 1986 Mercedes-Benz 420 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 | 1986 Mercedes-Benz 420 | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | 155 | 420 |
| Year Released | 1997 | 1986 |
| Engine Position | Front | Front |
| Engine Size | 2499 cc | 4196 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 493 HP | 231 HP |
| Engine RPM | 11700 RPM | 5400 RPM |
| Torque | 300 Nm | 327 Nm |
| Torque RPM | 9500 RPM | 4000 RPM |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1040 kg | 1625 kg |
| Vehicle Width | 1750 mm | 2010 mm |
