I have had this car a little under 3 months. At first it was running fine now after the car had been sat over night or when at work I switch it on and put it in reverse or drive it'd makes a really loud clunking noise for a few minutes then goes away once been driving for awhile. The accelerator vibrates too, not massively but noticeable. There doesn't seem to be much umph in the car either even though just had a brand new battery fitted. Any advice please? I'm from the uk and things are done very differently here I'm afraid if getting ripped off or told i need to have something fixed when I don't. Any help will be much appreciated.