Ah, the freeways...
Fatal accident, Cahuenga Freeway (Cahuenga Pass), 1951; victim, 26 year-old John J. Thornton. Just looking at this makes me cringe; of course this was back when cars weren't designed with crumple zones, let alone having seat belts and airbags.
This one really gets me. Look at that bent steering column and deformed steering wheel; the driver really hit those with a strong force before pushing his head through the windshield. And look at that driver's seat.
Both photos from the USC archive.