Intake Manifold Leake

What is your question?

I bought the above car from As Is from a used car dealer, the first day I had it, smoke came out of the enginge, the car kept stalling and then died completely, had it towed back to dealership. His mechanic said he replaced a wire and a coil but there's a small leak in intake manifold and it should be okay if I watch water. Still at dealership - I think I should have the dealer sell the car for me - afraid to drive it - have a bad feeling - I need a good answer