ELKHART LAKE, Wis. (AP) — Chase Elliott might be an 18-year-old rookie, but he isn't shy about sharing his thoughts when he sees something he doesn't like on the racetrack.

After an impressive fourth-place finish Saturday in the rainy and wild NASCAR Nationwide Series race at Road America, Elliott made it clear that he didn't appreciate long-time IndyCar driver Alex Tagliani's charge to second place on the last lap.

"I figured he was going to dive-bomb me there. I just didn't know when or where," said Elliott, the son of NASCAR icon Bill Elliott. "It's just frustrating. You have those guys, and I understand he's on slick (tires), I understand the situation. But that could have easily taken us both out right there. And that's just not worth it."

Tagliani nudged Elliott aside in Canada Corner, thundered past Kevin O'Connell for second place and nearly caught eventual winner Brendan Gaughan in the final turn.

Tagliani didn't think he did anything wrong.

"When he came and he saw that I was on slicks, he understood, so he said, 'Good job, mate,'" Tagliani said. "I mean, if I'm on wet (tires) and I'm racing him and I'm on the same tires, I think maybe, but as soon he he saw we were on slicks, he understood that at some point I'm going to make a pass.

"I mean, he still finished right behind me. There's a fine line between taking someone out, and passing him and allowing him to finish. That's what I did, so I think it was all right."