not really different animal. thats why i said back in the day when they were first being sold as a complete bike (previously you got a kit to convert a harley frame to use a SBC) they ran car tires, there were no 300 series bike tires.
they will boil smoke off even the McCreary tires, at anything under 50mph.
I wouldn't run car tires on a bike, seen it done lots, only on the back, never the front. i would think handling would be impossible with one on the front. Either way, it seems to work for some, not for others. Just like oil/etc.
Car tire on my Harley, NOT!
car tire on the crotch rocket, NOT EVER!
Car tire on drag bike, yeah!