Kyle Busch brings the Rowdy show to the Rolex 24 at Daytona

Kyle Busch climbs into his car for a test drive Friday for the upcoming Rolex 24 auto race at Daytona International Speedway.

DAYTONA BEACH, Fla. (AP) — Fresh from a holiday trip to the Bahamas, NASCAR’s newest two-time champion raced back to the track to open the new year.

Kyle Busch stepped out of his comfort zone at Daytona International Speedway on Friday, pulling on a white helmet adorned with his nickname “Rowdy” and climbing into a Lexus RC-F to test for the upcoming Rolex 24 at Daytona. The prestigious sports car race always features some of the top talent in the world, and Busch just might be this year’s main attraction.

Last year’s running of the twice-round-the-clock endurance race featured two-time Formula One champion Fernando Alonso and former CART champion Alex Zanardi, who raced for BMW without his prosthetic legs and relying on a specially built steering wheel to control the car. Alonso and Zanardi stole the spotlight from a stacked field that includes champions from racing series all over the world.

This year, the group includes Busch, who wrapped up his second NASCAR title less than six weeks ago.

He’s driving for Aim Vasser Sullivan in the stacked GTD class — at 18 entries that class has the most in the field — and drew the biggest crowds Friday as he prepped for his first stint in the car. Busch had one day of simulator work with Rolex teammate Jack Hawksworth before the test and recognized quickly what he needs to work on to be ready for the Jan. 25 race.

“I’ve got my NASCAR driving techniques just embedded in my brain and I’ve got to get rid of those a little bit more and get more accustomed to what this car can take and what the driving techniques are,” he said.

Because the Vasser Sullivan team races in a lower class, Busch will not be in contention for the overall victory. He will also be mired in traffic, potentially at night, stuck behind slower cars piloted by drivers with far less experience. Busch brought his regular spotter from NASCAR to assist, but can’t realistically gauge the difficulties he may face until race time.

For now, he has to figure out the anti-lock braking system, which is foreign to his regular car.

“I am used to our big, heavy stock cars where you have to start the slow down process way early, and the braking zone is forever and by the time you turn in you’ve got to be off the brakes, otherwise the inside wheels will lock up,” Busch said. “Completely different techniques with these cars. You can just drive the snot out of them, you can just throw it off the corner as far as you feel like you can get in there and stomp the pedal as hard as you think your leg will allow you to do it.”

Even out of his element, in a new car and a different series, Busch remained both demanding and exact in how he likes his car to feel. During an early debrief, he “suggested we get a little softer and they said ‘We’re as soft as we can get,’ and I said ‘Well, that ain’t soft enough.’”

His debut in the Rolex will be closely watched.

Wayne Taylor Racing is the defending race winning team but returned only two members (Renger van der Zande and Kamui Kobayashi) to its four-man roster.

Alonso won’t be back amid speculation he will return to the Indianapolis 500 this year and has been replaced by five-time IndyCar champion Scott Dixon.