You are passing right by one of the best and most famous roads in SoCal! Check out highway 2, Angeles Crest Highway. It cuts through the mountains above LA. Its a longer way around however you get to go around the grapevine and end up going through Tehachapi. We have a HUGE windmill farm, and the world famous Tehachapi loop. Both are VERY scenic. To minimize time, and maximize fun take highway 2 all the way up into the mountains, pick up Angeles Forest Highway to Palmdale, take the 14 freeway to Rosamond, Rosamond Blvd West untill Tehachapi-Willow Springs road, and take that aaaaaaaallllllll the way to Tehachapi. From there there is another road that takes you to a scenic overlook of the Tehachapi Loop. I took your map and added the changes. Also, if you go through Rosamond in the daytime you will pass by Willow Springs Raceway, a historic race track and they almost allways have something going on.
http://www.mapquest.com/?le=t&hk=2-H...5385f69367c168
P.S. Mapquest can get you lost in a hurry. I recommend Google.