My wife and I are planning to drive down the California coast from San Francisco to San Diego and then to Las Vegas from there. We are planning on doing this in 15 nights. We want to stop for 2-3 nights in San Francisco, LA, Las Vegas. Is this feasible? We plan to travel in mid September. Does anyone have any tips? Also, do you think we would have time to drive to Lake Tahoe from San Francisco first and then back again as we would really like to see it.