My new Lexus CT 200H purchased September 2020 is much noisier than I thought it would be. Also, on the M1 recently, it emitted a booming noise which kept up for a couple of minutes. I don't think I want to keep it if it is going to be such a noisy drive. Am I entitled to take it back within 30 days of collection? I phoned the Lexus Service department who admitted that it was a noisy car, and that this is only a problem with this model - not with any other models. I wish I'd know this at the start.