I feel kind of tricked. When testing cars, the car...

I feel kind of tricked. When testing cars, the car I wanted had its engine light on, my salesman informed me "No matter what day! Bring it in we will put you in a rental and fix it"! Well I went to go have it fixed yesterday, and it's only Sept 19th they cant fix my brand new, no miles on it, straight from the factory car until October 9th! Which means whatever is wrong with it, is going to get worse and worse. Even the technician said that the noise its making is related to the code from the engine light... my fear is I was sold a broken car that wasnt quality assured properly and now I'm going to have to drive it even if it breaks before the 9th... I just feel mislead. I didnt expect to buy a broken car, or that lithia would sell be one, and my salesman just kept saying "oh its probably just the gas cap turning the engine light on"... well it's not, and now every mile I put on it is a risk. I just wanted some help, but as I stood in the technician lobby and no one even acknowledged that I had walked in the door, I realized "I dont matter, i signed my name my credit is on it, and no one really wanted to help me at all". It made me very sad and I regret very much even getting a car from lithia..