NASCAR is full of variables that can wreak havoc with even the best teams. In any given season teams expected to be title contenders can quickly fall short.
There are teams that have performed in a stellar manner throughout the top-three series in NASCAR, but the best teams are obviously at the elite Sprint Cup level.
It is not just a saying, but a fact in this sport that to be the best you have to beat the best.
With the many moving parts of a team, a race car and a race, it not only takes being better than the rest, but how Lady Luck has played her hand.
In this slideshow the teams that have performed best this season will be highlighted. Let's take a look at why they are ranked as they are. See what you think.