I would not worry about driving that road. I have done many, many times in my MH and towing. There are some spots where you take your time, but it is a beautiful drive and you don't want to miss. By the way, there is a nice campground at Laguna Seca Raceway. If it is not a big race weekend, that is a great place to stay. Lots of the sites are on the tops of the hills with nice views. Good base camp for Monterey, Carmel, etc.
2001 34' Alpine Coach
2008 Jeep Rubicon or 2012 Ford F150 4x4 Lariat towds
or a couple of different trailers
Retired in Apple Valley, California