I noticed a funky looking shade to the front windshield of a Corvette ZR1 and I asked a sales person about it. He told me that it was a radar absorbing glass treatment! Sounded cool, but I'm not sure if I believe him. But, it see ms appropriate to be on such a car. This may just have been that metal laminat e to keep winshield from fogging up as someone spoke of earlier. Later, Dan