Autorent Hertz Tasmania is now offering campervan with quality (thule) bike racks. They also have a range of alternative vehicles like dual cab utes, cargo vans and 8 and 12 seat people movers along with luggage trailers which all can serve groups of riders.
At $13 per day, to a maximum price of $90 per bike (including rack) why not cruise Tasmania on two wheels and explore so much more; or bring your own bikes and rent a bike rack for only $50 per rental. If you're a MTB enthusiast Tassie has some of the best trails you'll find anywhere.