The NASCAR rumor mill is heating up, and one name is dominating the conversation: Corey Heim. Widely regarded as the sport's top prospect, the 23XI Racing development driver is making a compelling case for a full-time Cup Series ride—and insiders suggest 2027 could be his year.

This season, the 23-year-old has been turning heads with a split schedule across all three NASCAR levels. Despite making only half the starts of his Truck Series peers, Heim sits eighth in points with 204—a testament to his raw talent and consistency. His Cup Series cameos have been equally impressive, highlighted by leading 69 laps at Texas Motor Speedway and a solid 15th-place finish at Kansas. The consensus? He's ready for prime time.

According to The Athletic's Jordan Bianchi and Fox Sports' Bob Pockrass, there's a strong likelihood Heim will join 23XI Racing as a third driver next season. That would put him in the No. 35 car, currently occupied by Riley Herbst.

Herbst, 27, has had a rocky start to his Cup career, but 2026 is shaping up as a redemption arc. His average starting position (20.25) and finishing position (22.67) have improved significantly from last year's 26.97 and 26.39, and he's climbed to 29th in points through 12 races. More importantly, Herbst has earned praise from 23XI co-owner Denny Hamlin for his teamwork with Tyler Reddick and Bubba Wallace, and he brings substantial funding from Monster Energy.

So what happens to Herbst if Heim takes his seat? Industry insiders point to Legacy Motor Club as a likely landing spot. LMC is adding a third charter and needs both financial backing and on-track performance. Herbst's improving results and strong ties to Monster Energy make him an attractive candidate to fill that role.

For now, the chess pieces are moving. Heim's path to a full-time ride looks clearer than ever, while Herbst is proving he belongs in the Cup Series—even if it's in a different garage. Stay tuned; NASCAR's silly season is just getting started.