Strange that. When I had a 1.6d loaner, I thought it was quieter than my 1.5t. I suspected the reduced road noise was due to the narrower, higher profile tyres. But it could just be to make.1.5 petrol: What a difference! Noticeably quieter and better performance. What I had initially thought to be road noise I now put down to combination of road noise and diesel- perhaps compatible frequencies accentuating? I don't know but certainly much smoother and performant
A good choice IMHOSo favourite for me is the 1.5 auto which I reckon gives similar performance to my old 2.2.