The official BMW homepage has presumed credibility for me due to the fact that the brand has very high name recognition and is an iconic car manufacturer.
Uber has been recommended to me by multiple people, suggesting the brand as an alternative to using a taxi.
The Squarespace homepage has a clean and minimal look. The page looks very well designed, and incorporates a changing background image. It has a very relaxed and familiar, homely feel that can build a sense of credibility.
I have used Asos many times to purchase clothes online and I have always enjoyed the 100% money back guarantee that comes with each purchase if the clothes do not fit.