Do some research (google style) on Dex-Cool coolant. There is pending legal stuff due to GM using this type of coolant. There have been many premature gasket failures via Dex-Cool.
You should research that some, then get ahold of a GM area service rep. That probably can be repaired under a silent recall.
Bearings and break are normal wear items, you have to expect to service those.
If however you really want a new car, and have the financial oomph to pay for one, NOW is probably one of the best times you will ever have to buy new on your terms! Dealers and the makers are in DESPERATE need of new sales. Deals will never be better.