Nope, their still starfishs. You would need to hold a perfect condition Flamer on them for like a minute to kill them still :/
The one creature I can't stand going up against are the feral ghoul reavers. They seem to be nearly impervious to any attack. Takes forever for me to kill. Although I just recently got that perk that ups all your basics to 9. Might be somewhat easier now.
the vault says they have 1100 health
Bikes cause a bottlecap mine-equivalent explosion, Cars cause a mini-nuke-equivalent explosion, buses cause an even bigger explosion.If you have a plasma rifle, a few shots can detonate any of these, but usually a few hits from any firearm will set the vehicle on fire and it will explode a few seconds afterwards. You can die quite easily in a car explosion so make sure you aren't to close to any cars or that you've detonated them beforehand.
I thought all ghouls died from a shot to the head with a lazer rifle/pistol.