What effects do LSD and PCP have on a driver?

Pretty badly. During my younger days I tried to drive while tripping and could not get out of my neighborhood. The mailboxes appeared to be in the middle of the road, I thought teenagers were pulling a prank and placed them there. Also, the reflector lights on the road looked like the splashing water from fountains. I was very freaked out and pulled back to the side of my house and ran inside. Some people are not affected by it and I have seen them drive very well while tripping. It all depends on how you react to the drug and your state of mind. Try not to do it.