Drive back to Bay Area taking back roads. Hwy 12 from Lodi is especially nice in the fall. Then cut over through Pleasant Hill, the Tunnel and into Berkley. Or take the route through Woodland, Lake Barryessa, Napa, Vallejo and over the Golden Gate bridge from the north.
If you do take I5, just leave the cruise control off and vary your speed. Should be a good break-in drive any of those routes.
And if you do go to Shingle Springs, call Tim at the internet sales team and tell them Jerry Heitman sent you and you want the same pricing he got. Ha! Tim sold me my last two Subarus. If he's not available, then Kevin is his boss and also knows me by name. Let Kevin know that Golden State Warrior tickets are on the line if he can't help you. (My son works for the Warriors and can get free tickets to games. I promised him a pair to any game this season) Seriously, these guys are not your stereotypical car salesmen.