In the automotive world, the term sleeper can mean different things to different people. At the end of the day, it all boils down to the same theme – a fast car that doesn’t look fast. However, this innocent-looking 1989 Jeep Grand Wagoneer could well be the purest definition of a sleeper you’ll ever find, and if you simply can’t resist its woody charm, it’s on the block with Mecum Auctions and will sell later in August.