Cawan, i found them in TESCO Kajang. I was going to my friends place when i made a pit stop there. There was a hotwheels person keeping back all the cars. I asked him if i could rummage through it. He says ok, and i found these 3. I forgot to mention that stash has lots of gold Civic Si and Acura NSX. Its crazy!
Cybernation, the white GT500 should be released same as the red one. I think its more in demand than the red one. i have also yet to find an Audi R8. It seems to be another fabled car.
And there is this shop at rooftop in Sg Wang that has a lot of treasure hunts selling for RM15 a pop. Fuuhhhh!