1st was the motor to fail after less than 1000 miles after warranty expired. GM was kind enough to provide a new motor, but still left me with a $7k repair bill.
2nd was the radiator. Could be due to an accident previously.
3rd-4th-5th chasing coolant leaks. 1st hose to engine block. Then coolant tank and hoses, then lower radiator hose connector broke. Changed those hoses at same time, to be safe.
6th Failed A/C compressor,