sport maxx was is RM580 here and the direzza about RM530. i'm wondering if penang prices are more expensive! 535i are you on the same size?
the woman in the shop convinced me to try out the dragons. supposedly better performance in the wet vs the dunlops and longer lasting. lots of people from work seem to go there so i guess she's quite reliable, and she seems to know her stuff. will give you guys an update how it goes.
as for why a supra engine. the car was quite old anyway (1989) so i wanted to change the engine. my dad had put in a supra engine into his old 732i and it was running really well, so i went to his mechanic and got the same thing done. maybe not everyone's cup of tea, but the supra engine seems to match the car quite well . not much turbo lag and great for overtaking on the motorway.