BROOKLYN, Mich. – General Motors has discontinued its funding of NASCAR teams in the Nationwide and Camping World Truck series, several teams affected confirmed Friday. More cuts – at NASCAR’s Cup level – could be next.

“Kevin Harvick Inc. has lost its manufacturer support,” KHI co-owner Kevin Harvick said in a statement released on Friday.

“Although this will require some internal restructuring, our commitment to our sponsors to provide the best possible product on the race track will not change.”

GM last week filed for Chapter 11 bankruptcy protection and has started the process of evaluating the cost effectiveness of several of its programs, including its manufacturer support in motorsports, and specifically NASCAR.

On Wednesday, GM officials are expected to meet with several teams in NASCAR’s Sprint Cup Series to detail what – if any – cuts may occur at that level, multiple sources told the Charlotte Observer and ThatsRacin.com.

GM released a statement confirming its evaluation of its motorsports support.

“Chevrolet’s involvement in racing is a sound business decision that translates directly into the sale of cars and trucks,” the statement said. “It is essential, however, that we continue to look at every penny we spend as General Motors takes the necessary steps to become a leaner company with a significantly stronger balance sheet.

“While Chevy Racing is talking to its business partners about ways to reduce cost and maximize the return on investment, it is our policy to not talk about the details of business relationships with our partners.”

Cup teams at Michigan International Speedway still await word on any potential cutbacks in that series.

“We, along with all the other Chevy teams, are in conversations with GM about what effects there may be as a result of their filing for bankruptcy,” said Earnhardt-Ganassi Racing spokesman John Olguin.