Being such an old and established company, Sixt has very traditional concepts of work and worklife. As noted above there is generally a clear comparison between the German colleagues and that of the UK colleagues. There are often issues between the teams that stem from this cultural difference such as the UK team generally more relaxed in regards to punctuality whether it be for lunch (a limit of 30mins for a midday lunch break) or when the shift is to start (even with a genuine reason such as train delay etc), whereas the German colleagues come to work for the sake of work -even if there is an issue they encounter they just accept it (but later complain incessantly about it outside work).
A major problem with Sixt is that there is no discrepancy between management and the workers. There are oftentimes problems with payments such as bonus schemes not being clarified; work expectations not being advised and a general sense of feeling of being 'replaceable'.
Sixt is essentially plays a numbers game. If you do not meet the requirements (despite not being clarified to be begin with) that they will easily replace you with someone else as they have a tendency to high turnover of new employees.
The UK reservation team is almost always made up of new team members less than six months since starting. There are hardly any team members older than 1 year who have been with the team.
Sixt has hardly any employee benefits. They hardly, if every, provide any milk or sugar for the coffeee machines. Water fountains often dry up and there are several days where water is only available from the kitchen or from the toilet. There are no BVG ticket schemes nor do they have regular social events.