purchase a pre owned Buick at Sinclair Buick with ...

purchase a pre owned Buick at Sinclair Buick with 17k miles, at 35k miles it had a problem covered under warranty however Sinclair wants to charge me for a loaner despite the problem making the car undrivable, Sinclair suggestion, and they can't get to it for 4 days.
Haven't purchased an American manufacturer car in 30 years. I like the styling but same old story... American made cars are still inferior and the dealers won't stand by the junk they sell. Maybe I'll try to buy American in another 30 years if they're still around. There's a reason we had to bail them out 10 years ago and they didn't learn a thing.