Vineyard Transportaion

Hello All...I'm trying to organize a trip to the vineyards out east, just for some wine tasting. Any suggestions for transportation? We could obviously drive ourselves but I would rather not visit several vineyards and then drive home. Should we do a limo service, or can that get to be too pricey? It would just be 4 of us - 2 couples? Any advice/help is appreciated!!! Thanks!