An oldie, but a good reminder of how long some of these development cycles take. Since GM (along with everyone else) is headed into EVs.... will that be the breakthrough market..... 30 years ago, they cited the same need that SPD addresses today.
To me, the killer apps are sunvisors, rear side windows and then dynamic glare control on infotainment screens. Sunroofs are just a gimmck AND windshields already use laminated glass. We're getting close, one more model with decent volume gets us to breakeven, but I doubt it's a sunroof that drives demand-- sun visors should do it.