Old truck (circa the middle of the last century... doesnt that sound strange).  Ask for me to remove the "number 26" if you like, or check out the variations on that pattern also listed on this site.  This is a fun stained glass pattern to make for dad, or grandpa, or someone who is nostalgic for old cars and trucks.  This is kind of a generic truck, might look a little like a chevy (any resemblance is purely coincidental)