The 2011 NASCAR season is only six races old, but it is never too early to start critiquing the performances of the sport's biggest stars. Some drivers have overachieved from preseason expectations, while others have been greatly disappointing.
We will take a quick look at the way the season has started for some of the more notable names in the Sprint Cup Series, and grade their performance after one-sixth of the season.
The good news for any of the drivers receiving low marks is that there is still plenty of time to turn it around, while conversely, the drivers who are off to great starts have the pressure on to maintain for 30 more races.
Did your favorite driver make the grade? Let's find out by getting class in session.