Hi there, not sure how to post a message, however you seem to be the guru. I am taking my father for a roadtrip from the 21st August to 1st September this year for his 70th (still a kid). His dream is to see the States and this will be his first visit. We are flying in and out of San Francisco and I was hoping to take in Napa, Yosemite, Monterey and, if time permits down to Vegas. Would you be able to recommend the ideal itinerary? Also how difficult would it be to hire a classic american convertible?