grenoble to st sorlin

Hi, I am trying to travel from grenoble to st sorlin, does anyone know if there is a bus that i can take? I have travelled from grenoble bus station to alpe d'huez before and it was easy and cheap, hoping it will be to st sorlin, also, does anyone know how long it takes approx. Would it be easier to hire a car?

thanks

try this ..you might have to email the tourist office

http://www.sybelles.com/fr/contact-pratique/transports-collectifs/navettes.htm

€95 return ..it ain't cheap