it all kinda follows a twisted askiew perspective. while the knucke draggers turn a harmless tyre around and around and around and around *yawns* we fire up furnances to produce serious "molten magma" (say it out loud in your best Dr Evil voice)

as with the highlite of any good burnout, you wear the tyres down to the belts and getting them to the point they pop (better yet if they both pop at the same time, unless your a single peggar)

of course what we wanna see is you don't stop still melted fragments, that once formed the exhaust wheel of your turbo, land several meters away.