There are some nice pics of the Roloff Farm from another family who visited on the weekend. You can see that Molly already has a car of her own. It is the green Nova that was seen last year (some of the tours last season showed it sitting next to Jeremy's yellow camaro).
There is a picture of Amy and Jacob in this set as well as one of Ron and Peg. Jacob appears to be out and about more with the paying customers this year than last.