Frankie Muniz gets ready to take his Mercedes out for a spin on Sunday in Los Angeles, Calif.

The Malcolm in the Middle star has put a hold on his acting career and focused soley on his racing. He’s so focused, he thinks he would leave any other actor in the dust! “I don’t want to sound conceited, but I don’t think there has been an actor or celebrity-turned-race car driver that has made it as high up on the race car circuit as I have. So I don’t think there’s anyone who can keep up with me. And that’s just me being honest. I want to race Michael Schumacher, seven-time (Formula One) world champion.”

MALCOM IN THE MIDDLE… ALL GROWN UP

Frankie Muniz shows off the big guns, flexing his biceps for paparazzi after a work-out in Los Angeles on Thursday.

After working up a sweat, the pint-size actor hopped into his mustard yellow vintage Chevrolet Cheville and rode off solo.

Frankie celebrated his 22nd birthday yesterday. HAPPY BIRTHDAY, FRANKIE!

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Former Malcolm in the Middle cutie Frankie Muniz looks like he needs a bit more shuteye, walking down Sunset Boulevard Monday morning.

The 21-year-old actor sported his mohawk hairdo and a new goatee beard as he headed to Dukes Coffee Shop is Los Angeles.

Muniz also wore a shirt by Jensen MotorSport, the team that he raced for in the 2006 Formula BMW USA series.

Frankie’s facial hair: YAY or NAY?