NHTSA Complaint #11436289 — 2016 CHEVROLET CORVETTE

Have now experienced, for the FOURTH time, a crack in one of my rear cast aluminum rims on my 2016 limited edition C7R Corvette. Once the rim cracks, it leaks air, slowly to start with but then faster and faster as the crack grows over time. This latest crack is on a rim that I bought for over $1,000 from my local GM/Chevy dealer when they wouldn't do anything for me over a previously cracked rim. Every one of the four cracks have been on the inside of the rear rim with no trauma evidence to be seen as a don't hit curbs or potholes with my car. I drive carefully as evidenced by my getting 19.7 miles per gallon for the life of my car and as much as 27 miles per gallon for a 50 mile stretch. I don't take it racing or abuse it as this was my dream car, one of 500 made for the US market. The local dealer folks admit the rims are defective but say they can't do anything about it because GM says the rims are not defective. The first cracked rim was also examined by a metals professor at Sacramento State who confirmed the rim was defective but said destructive testing would be required to prove that with absolute certainty. I have not agreed to destructive testing and am in possession of the latest cracked rim. Once a rim cracks, I have to get it replaced or fixed as the car is not really usable with a flat tire.