No insurance company will touch your car in the GTA if it's modified.
In fact if they find out, they will drop you like a hot potato.
If your car is 15 years or older you can go with Lant/Silver Wheels but that won't help much here.
2012 White 328i Sportline
2009 135i Silver w/Black (Sold)
2006 325i, AW & BLack, ZSP (Sold)
Lots of Miatas