I am quite familiar with these cars, the Fifth ave, Plymouth Caravelle and Dodge diplomat are all the same. You get either a 225 Slant six gutless but indestructible, 318 V8 reliable but Meh, 360 V8 police pkg Dodge diplomat only. These are fairly reliable cars, built like tanks and parts are commonly available. The 318 V8 can be worked to have a bit more power quite easily, while still delivering reasonable gas mileage. Good car, not the coolest but fuck what people think. Buy it!