Yesterday, the four finalists for the Dodge brand’s “Are You Tuned-out” challenge was announced. The contest was created for certified gearheads and customizing fanatics all over America.

According to data, Americans spend almost 18 billion hours in tuning their vehicles every year and the finalists represent all the Americans who are really tuned in on their rides.

Out of the 952 contenders, the four finalists getting the chance to win a brand new 2008 Dodge Caliber SRT4 are: — Anthony Baroni of Brentwood, Calif.

- According to his wife Tiffany, Baroni is a "huge car nut." He spends countless hours researching cars online, in magazines and on TV, and is obsessed with the Dodge Caliber SRT4. He is so tuned in to tuning that he has even tried to teach his 3-year-old son to say, "Mommy, daddy needs a new Dodge."

– Zach Madrid of Colorado Springs, Colo. - Not only is Madrid "completely tuned out … he’s a Mopar freak," according to his fiancee Tricia Champagne. He has a passion for cars and customizing, and has a sketch book full of visions, concepts and customized versions of his favorite cars.

– Paul Martins of Canton, Mass. - According to Brenda Posipanko, she’s lucky. She has a wonderful boyfriend who is faithful and loyal; the only problem is she never sees him. In addition to filling her dining room with a "gazillion assorted car parts," Martins spends all of his free time under the hood of his project car.

– David Mayo of Philadelphia, Pa. - Mayo spends more time with his car than any member of his family. He’s so tuned out his family told him that cars are the reason he’s not married. He’s addicted to tuning and admits that his current car is killing his social life. If there’s a rehab clinic for tuning, Mayo is the first to confess that he needs help.

"The four finalists in the ‘Are You Tuned Out’ contest represent the millions of gearheads who live, breathe and dream about vehicles everyday," said Ralph Gilles, Vice President - Jeep(R), Truck, Advance Interior and Component Design, Chrysler LLC. "With the holiday season right around the corner, we’re going to award one lucky tuner a Dodge Caliber SRT4, a vehicle that comes ‘performance tuned’ straight from the factory, so they can spend less time in the garage working on their vehicle and more time with their friends and family."

The winner will be voted by online voters via www.DodgeRUTunedOut.com. Voting starts yesterday until December 10. The votes will be mixed up with the verdicts of the judges and the winner gets the new 2008 Dodge Caliber SRT4.