How do you tell if a Mercedes is 190 or 190e?

To distinguish between a Mercedes 190 and a 190E, check the model designation on the rear of the car. The 190E typically has a fuel-injected engine, while the base 190 often has a carbureted engine. Additionally, the 190E usually features more luxurious trim and options compared to the standard 190. You can also look for differences in the grille and headlights, as the 190E may have a slightly different design.