Meanwhile, Wankel continued his own work with the rotary piston engine, forming his own research establishment in Lindau, Germany, in the mid-1970s. In 1986, he sold the institute for 100 million Deutschmarks (around $41 million) to Daimler Benz, maker of the Mercedes.
The entry day to a Schengen country is the first day and the exit day is the last day of the stay. You must at any given time only have a maximum of 90 days stay in the Schengen region in any 180-day period.This is in other words a ârollingâ calculation by which the period of 180 days prior to each day of the stay are taken into account.ou must at any given time only have a maximum of 90 days stay in the Schengen region in any 180-day period. This is in other words a ârollingâ calculation by which the period of 180 days prior to each day of the stay are taken into account.
Note that holders of a Schengen visa can enter Bulgaria, Croatia and Romania for up to 90 days in a 180-day period during the validity of their Schengen visa without having to apply for Bulgarian, Croatian and/or Romanian visas.olders of local border traffic permits are able to spend up to 3 months every time they enter the border area of the Schengen country which has issued the permit (this time limit is far more generous than the '90 days in a 180-day period' normally granted to third-country nationals visiting the Schengen Area).