Craigxx19xx

Hi everyone I’m new to the scale model world, I have one scale car a 131 fiat my mother gifted me. As the car had a very detailed engine(opening doors,opening good, etc) now looking for my next model to build, but they all look like a mold that just goes over the chassis when you’re done. No high detail engine work or anything. Can someone link me to a place where I can find model cars that also have a nice detailed engine ? I can’t find any! Thanks