Without question, if it wasn't for sponsors, NASCAR would fail to exist.
When R.J. Reynold's first acquired naming rights to the Cup Series in 1971, sponsorship has become the name of the game for the sport. When STP signed a multi-year deal with Richard Petty one year later, teams realized that without some money coming in, they wouldn't be racing very long.
These days, sponsorship comes in many forms. Whether it is the name on the car, the title sponsor of the race, or even the naming rights to a track, sponsorship is No. 1 in NASCAR.
But, as good as many sponsors have been to the sport, every now and then, a few come through that just make fans question whether they belong. Others have been good, they just picked possibly the worst time to promote a product.
No matter what, they are simply unforgettable. Here's a look at 10 sponsorships in NASCAR that didn't exactly work perfectly.