I just discovered a company called Daytrip that has private car service between cities in eastern Europe with sightseeing stops along the way if desired.
I would like to hear from anybody that has used this service as I am thinking about using it for transit between Prague and Vienna.
HI! I was logging on to post the exact same question! I hope someone answers us! :)
I don't know that company, but a company I have used, which is mentioned often on this site is CK Shuttle: http://www.ckshuttle.cz/booking/?step=2. They'll do these kinds of transfers for you and they're a well-reviewed and trustworthy company. It looks like they'd charge you $220 for a sightseeing transfer like this - less if you just want to transfer.
One more vote for CK Shuttle we used them this summer first from Vienna to Cesky Krumlov (not a day trip, but got us direct from our apartment to our hotel by eleven a.m. with almost a full day of sightseeing in Cesky Krumlov) and a scenic transfer from Cesky Krumlov to Prague with a stop in Tabor. We found both drivers prompt, proffessional, friendly, and full of local talk.
