Yesterday I dropped off 2 wheels and tires (not on the car) to get changed over for my C8. I didn't ask beforehand what the cost would be as I never paid more than $30/wheel installed and balanced. When I got the bill it was $181 for the 2 wheels. I questioned the price and was told this is because it is a Corvette. The Service Advisor said all Corvette service requires a "Corvette Specialist" even for tire install and Roadforce balance. Anyone else experience this Corvette service premium? Also while checking parts prices at the same GM dealer does not follow GM MSRP and increased the MSRP about 20%. The employee was not aware the parts were above GM MSRP and said that was not the price in their system and matching the price I already had was below their cost. I have never heard of a dealer charging above MSRP for parts. Is this now common?