[tmnraghu78]

here are my two cents.

Germany country side is excellent. I was there for more than a year and I loved to travel by bus or by train. Frequency was good and I enjoyed every moment watching country side, their culture etc., rather concentrating on driving in unknown territory. Travelling in ICE (inter city express) is definitely memorable moment(s).

Since you are on business trip, company would pay you for hiring cabs. Even that is also an option. But, remember most of the drivers cannot speak English (even a single word). Having pocket dictionary / list of frequently used words woulbe definitely handy.

Numbers, week days, words to greet people or thanking people definitely helps you.

Thanks,
Raghu Lakshman