Anyone put small van tires on their car?

[cRiPpLe_rOoStEr]

I didn't even pay attention to differences between car and truck/van/trailer tyres before, even though I was aware of load and speed ratings for tyres. Well, considering that some larger cars might eventually be heavier than most midsize trucks that I regularly see on the streets, I could really care less about any difference between car and truck tyres...