Visually this website design reminds me a lot of Dekochari [1] and Dekotora [2]. Dekochari are highly decorated bicycles, and Dekotora highly decorated trucks.

All of them have this very bright, visually busy style that is, as the website says, very different than some imagine the Japanese aesthetics.

[1] https://en.wikipedia.org/wiki/Dekochari

[2] https://en.wikipedia.org/wiki/Dekotora