i have a ford with black 5% tint and i would never get it again as it gets too hot in the car when it has been sitting. when i go to get my 33 done i'm going to get 15% silver tint as i think it would look better on a white car and would be cooler if it has been sitting.
Black 5%
UV 98%
Heat Rejection 58%-68%
Silver 15%
UV 95%
Heat Rejection 79%