I tinted Huper Optik Sech60 for Front Window, and C40 for sides and rear on my Black Honda City 4 months ago, my car is very hot after expose to hot sun.

My friend tinted the same thing on her White Toyota Vios, her car is quite cold as compared to mine since we parked the same place for the same duration.

Not sure I'm getting ripped off or is Black car absorb heat so much?