I agree with Michael that you'll perforce be shortchanging the drive northward along the coast where there is so much to see, but each place worth visiting takes time to visit. A case in point: You'll be driving within stopping distance of one of the iconic Twilight filming locations, but may not have time to visit and enjoy it. My wife and I stumbled upon it last summer when we were wandering up the Columbia River gorge, taking time to make short hikes up into see a number of waterfalls when we came across the View Point Inn where the prom scene in Twilight. We had a lovely lunch out on there lawn overlooking the Columbia River, but the time it would take you to make the 50 mile round trip detour and have a relaxed lunch or dinner is probably not available to you. You'll have to be very thrifty with your time and pick just a small number of places to visit.

AZBuck