Never love something that doesn't love you back.
Kids love you back.
Pets--sometimes sort of.
But cars? Nope. Not worth human love--not even affection; one would be repaid with trouble and heartache, and when it comes to cars, they give enough trouble and heartache as it is.
If I didn't have to worry about keeping up appearances, the only time my car would get washed would be when it rained.