Yesterday was the 101st anniversary of GM's founding. Ben Cosgrove of LIFE says, "in light of the super-efficient but very same-y, dull designs of so many of today's vehicles, I put together a look back at those decades when cars had real personality, real spark, real curves. There's a lot to be said for a fender that makes one's heart race faster, or a bumper that can make a person blush …
Above: "Fiat's streamlined, one-cylinder Volugrafo got 100 miles per gallon, 1947."