I have never bought a brand new car, and I never would.
When I bought my current car (The Compact Royce), it was about 3 years old, it had done about 50,000 kms, and it was about half the price of a new one. As far as I was concerned, it was ideal.
It was for sale at a major dealership, and a very attractive 'parts and breakdown guarantee' was included in the price. I was certain that my Euros were being well spent.
On viewing the car, I had noticed that the front left glass headlight cover looked brand new, and that the front left wheel arch panel was a tiny bit different in 'age and finish' to the rest of the car; both parts had obviously been replaced. Without mentioning what I'd seen, I asked the salesman if the car had been in an accident, he answered that IT HAD NOT. I said nothing; and gave him my slow 'knowing smile'.
It really does make you wonder why second-hand car salesmen are totally incapable of telling the truth; all he needed to say was 'yes, it had a little bump, but it's been repaired'.