Interesting experience. I recently purchased a 2021 UX 250h premium sport edition with 9200 miles. I have it 6 weeks and will be getting rid of it. This is the nosiest and most uncomfortable car I have owned in 44 years of driving. From what I have read the tyres are a major factor. You can feel every bump in the road. I live in Northern Ireland and our roads are poor but this car exaggerates this. Previous car VW golf 1.4 Tsi and I had it for 6 years was quiet and smooth. My wife’s 6 months old Yaris design is far quieter than the UX. Also the Yaris drive is a lot smoother. Yaris is 1.5 hybrid. Previously owed 3 avensis, 2 Yaris, Rav. 2 BMWS, 3 Peugeots I am so disappointed in the UX. I have always associated Lexus with quiet and smooth driving cars. Another reason I purchased was the reliability record of Lexus but this means nothing if the car is dreadful to drive. My test drive was mostly on a short motorway section so very difficult to spot the noise issues.