I always wanted a Deux Chevaux. I first saw that much beloved French car when I first visited Paris in 1972. I remember thinking that something that funny looking must have been a model car project gone terribly awry. A sardine tin on wheels. But there were so many...partout.  My grandfather, with whom I was traveling, along with my grandmother, had a certain fondness for the car, an affinity that should not have surprised me since he and my grandmother had owned one of the first Corvairs and...