Kyle Busch is irritated. Through 18 races of the 2017 season, the No. 18 Toyota driver has yet to win a race, and his latest frustration was heard loud and clear over the radio scanner at Kentucky Speedway last weekend.

During an early caution, Busch’s crew chief, Adam Stevens, asked the driver, “What do you got here?” — which, loosely translated, is a question about how the car is handling. But Busch snapped back.

Busch: I don’t know. Second-best car is what I got. Stevens: How can I help you? Busch: I don’t know, son. It’s the same stuff every week. I don’t know.

Understandably, Busch is losing his patience. He consistently has a fast car running near the top, and behind Martin Truex Jr.’s dominating 13 stage wins, Busch has the second most of any driver with four. He has led 17 percent of this season’s total laps but still hasn’t crossed the finish line first.

Third in the overall driver standings, Busch would be in the playoffs if they started today. But a win in the remaining eight regular-season races would guarantee him a spot to compete for the championship.

Busch and Truex have been out front next to each other so much this season — and particularly during Saturday’s Quaker State 400 — that the announcers even made a joke that Truex was missing “his racing buddy.” But Busch just couldn’t seem to catch a break, continuing to complain about the car and his track position.

More from the radio scanner:

Busch: (Expletive) stuck in (expletive) traffic! Can’t (expletive) turn. I need to go down on the track bar to keep lateral, but it won’t (expletive) turn. God, we suck.

He ended up finishing fifth in the Quaker State 400, marking his seventh top-5 finish and 10th top-10 this season.