Put it this way, I can (most the time, but no way nail it every time, just not consistant enough yet) do laps of big roundabouts (ie proper 3lane big fuckers, not donuts round little ones as per ace cafe chav donuts) sidways in a 95bhp 100quid full weight shitbox volvo with no mods barring a welded diff, and then transition left to drift off the exit. (and obv thats massivley harder than with something with power and decnet suspension)
But thats dogshit in the gand scheme of drifting, and thats 2nd gear 40-50-60mph stuff, not 4th gear 125mph mental shit etc etc the pro's do.
Christians right about the technical view of it too, I understand how it all works, mostly due to doing it for the last year and a bit (trust me, watching shite drift bible DVDs and shit wont teach you owt, contrary to popular myth

), and tho its not long enough to get good, i know what works and what dont...