"He who does not think himself worth saving from poverty and ignorance by his own efforts, will hardly be thought worth the efforts of anybody else." -- Frederick Douglass, Self-Made Men (1872)
Houses can be improved, new fixtures, new mechanicals, etc. can be installed. No matter how old the house, with a little maintenance, you can continue to keep it up to date. Cars, on the other hand, are what they are, you cannot significantly improve them over time. You can't add on a new back seat if you run out of space, can't build new trunk space, can't make it significantly faster, etc.
Buy used houses and new cars. It makes a lot more sense.