CONCORD, N.C. -- This month, Valvoline and Hendrick Motorsports announced an exciting new online challenge called "What's Under the Hood?"
The interactive video game show series tests the nuts and bolts of car lovers' do-it-yourself automotive knowledge, and Kasey Kahne, Jeff Gordon, Jimmie Johnson and Dale Earnhardt Jr. serve as the hosts.
Today, Earnhardt's round as host begins, and there are plenty of opportunities to win prizes from limited-edition gear to signed memorabilia and collectibles.
Each round features a quiz in multiple-choice format, and the more times a contestant plays, the more opportunities they have to win.
Take a look at how all four drivers helped kick off the challenge with the above behind-the-scenes video.