Dishonest company

I agree with everything said, I bought a vehicle with a turbo and was told by the owner that the smoke coming out of the exhaust was normal, I went to a mechanic who said the turbo was going bad. I took the vehicle back to the dealer who took out the oil dipstick, looked at it and said the mechanic was lying and there was nothing with the turbo and that I was falsifying the amount of smoke pouring out. That among other things became a huge issue with the car and he was reluctant to help me then and there. He said the next time my car doesn't start and I am stranded, call a tow truck to get it towed to him, then he will have his mechanic look at it. Mind you I have a two children who are with me the majority of the time and will be stranded along with me.