SPARTA, KENTUCKY - JULY 08: Kyle Busch, driver of the #18 Snickers Toyota, looks on before the Monster Energy NASCAR Cup Series Quaker State 400 presented by Advance Auto Parts at Kentucky Speedway on July 8, 2017 in Sparta, Kentucky. (Photo by Jerry Markland/Getty Images)

Kyle Busch gets rowdy, rips into fan on Twitter

Rowdy got after it today.

A serious of tweets by a fan has gotten under Kyle Busch's skin, and he wasn't having it:

What started all of this? Apparently, the following tweets that have since been taken down, but several sites, including CBS Sports, grabbed screen shots:

One of the hottest topics among drivers is how often those who race in the Cup series can race in XFinity and Truck series races -- and Busch has ripped new rules that place limits on those races for certain drivers.

RELATED: Former NASCAR champ rips new NASCAR rules

In an interview on SiriusXM Radio -- and reported on -- Busch slammed NASCAR's new rule that limits the number of races Cup drivers can participate in, in lower divisions.

Under the new rules, drivers with five or more years of full-time experience can run in a maximum of five races in the Camping World Truck Series, and seven races in the NASCAR Xfinity Series. Here's what Busch said:

But if we keep continuing to put the limits on it, I'm going to tell you right now, if the limits to the Truck Series go to zero, I'm done. So you wouldn't see Kyle Busch Motorsports teams out on the race track.

His concerns center around losing sponsorship, but also losing the enthusiasm he has for truck races.

I enjoy going out and running Truck races and if I'm not allowed to do that, then why am I owning a team that I'm not allowed to race for? It just doesn't make any sense. If I'm out there spending money for other drivers and whatnot to come up through the ranks, but yet, I'm getting beat up as not allowed to drive in it and it's no fun for me, then why am I spending my money to continue to evolve talent that's going to replace me one day.