<prompt> Human: So, I used craigslist to find a used Subaru pretty common practice here in Denver. I found a guy that runs a small business of buying Subarus from auction, repairing them, and flipping them for a small profit. I usually have a good feel for the intentions of people, and he immediately struck me as a very affable guy.When I came to see the car, it was in great shape, and he was very candid with the work he put into it, and I got to test drive it. I wanted to go on the interstate, but it was rush hour, and figured I would just end up sitting in traffic, so I didnt. The car ran beautifully.I decided to pay him the 6000 in cash for the car, the applicable taxes for his part. We went to his office, and had a great conversation while we were filling out the title a clean title, and making everything official. I handed him the money, he handed me the paperwork, and I was off with a new car!However, as soon as I hit 60 mph on the freeway, the car shuddered, and really struggled to slip into the last gear. It eventually did, and runs fine at 70 mph, but every time I had to slow down, the car shook violently. I was mortified that I had just threw 6000 of hard earned money out the window. I pulled up to my house, and called him, and said, Man, you sold me a bad car! He was confused at first, but very apologetic. He has a thick Eastern European accent, so he is difficult to understand on the phone but fine in person. He told me not to worry, and to bring it to the shop tomorrow to check it out. Now, he might be honest, and going to make things right, but what is my ground to stand on if I want to back out of the sale? Are there lemon laws protecting me, or was it just a poor purchase? I feel like a 3000 repair for transmission on a 6000 car makes it a much worse value, and I definitely wouldnt have made the purchase if I had previously known about the problem.EDIT 1: I didnt let a mechanic check it. I have done that with my last two cars, and the mechanics didnt do much to it aside from checking the frame, etc., and then confirmed my initial gut feelings after I paid them 100. I was either being cocky or cheap this time. Probably both.UPDATE I texted him tonight, and apologized for accusing him of selling me a bad car. He called me back, and told me again not to worry. He reassured me that I wont have to pay anything, and we will get to the bottom of it together. What a swell guy!TL;DR: Bought a car, immediate problems, scared I am losing my money.  <response>: Well, the fact that he invited you back to take a look at it is a good sign. If he cares about his reputation, hopefully hell help you out. Keep in mind that he can probably get a significantly better deal on a re-built transmission than you can, since he probably has a deal with his eastern European buddies at the transmission shop down the road. Worst case, maybe hell split the difference with you and youll only be out a few hundred more?Other than that, you likely dont have any legal recourse.Best of luck. Sorry this happened to you. 