Daughter purchased 2013 SF with 3.3 engine. Lots of issues within last 24 months since purchase.Electronic control module needed replaced. Several coils gone bad. About 8 months ago started running hot....blown head gasket. Had head gasket repaired and trusted local mechanic. He noted to me that there were issues with the machining on the head, especially with having to rethread the bolts. Ran great for about 3 months. Now head is gone again; mechanic says engine needs to be replaced. Having issues finding an affordable 3.3 engine. With engine cost and mechanic cost to install, car would not be nearly worth what I have put into it (and still owe on it). Perplexed? Replace the engine (3500-4500 engine cost only); or try to sell (give away) the car since it won't run. Suggestions helpful???