BMW Melbourne uses a film that have the support from sunsmart... or supporting sunsmart I dunno.
www.uvshield.com.au
They charges an arm and a leg but I got quoted from Tint-a-car on a coupe for 2/3 of the money.
The tint is not dark at all, which I like. The heat issue when I first had the car is gone. Now the air con is "working" properly.