Surprising as it might sound, U.S.-based automakers are now turning out some of the best subcompacts on the market. For instance, here's the cute and fun Chevy Spark. Yes, it's really tiny but the front seats, at least, are reasonably spacious and the interior is highly practical. What makes the Spark really charming is that it doesn't pretend to be anything more or less than what it is: small cheap transportation. Other automakers take note. Even at this price, driving a teeny car ought to be fun -- and this one is.