Ein Sommer in Schottland (2012, Marion Kracht, Sascha Hein)

A woman returns to Scotland on a coach tour, thirty years after she was there as an exchange student. The coach is Highland Tours SN12EAJ, a Mercedes with Unvi coachwork:

Unhappy with the tour, she leaves the coach and catches a passing local bus to search for an old flame. The bus she flags down is Eastern Scottish VV187 (E187HSF), a preserved Volvo B10M-50 Citybus with Alexander body: