OK, I know this qualifies as incredibly trivial and seems to be a no-brainer, but you can't imagine the number of emails I get asking how to deal with this problem so here it is.
The demist grill on the dash of the SPF GT40 is painted gloss black. This creates a horrible reflection on the inside of the windshield in bright sun light. A simple fix is to remove the seven screws holding it in place and paint it flat black. A better solution is to powder coat it flat black as shown below. There is a detailed note on powder coating elsewhere on this site and I strongly encourage you to read it and set up your own home powder coating setup.
The demist grill on the dash of the SPF GT40 is painted gloss black. This creates a horrible reflection on the inside of the windshield in bright sun light. A simple fix is to remove the seven screws holding it in place and paint it flat black. A better solution is to powder coat it flat black as shown below. There is a detailed note on powder coating elsewhere on this site and I strongly encourage you to read it and set up your own home powder coating setup.