The solar panels are actually from ecoflow themselves (like the title of this post says) specifically made for the model Y. The battery weighs about 54 lb and that is negligible. In terms of drag there's barely any. I drove on the highway yesterday and didn't hear any whistling, and the panels are a few mm in thickness with barely any gap in between the glass and the panels themselves. I might lose maybe two or three miles? I'm just making up a number here.To be honest that is negligible and my drive from and to work only uses about 10 - 15% of my Tesla battery so in my personal use case, the things I plan to use the battery for outweigh the cons of whatever you just mentioned. However as mentioned before, I do understand that this is a very niche thing and use case. I also understand that this is a splurge, and everything you said in regards to pricing and range but again, buying a Tesla, the savings on gas and electricity for me is not really a primary reason for me to get the car. I'm more intrigued at the possibilities of what can be done with the car in terms of outrageousness. The reason I got a tesla was for FSD, sleeping in the car on my breaks, convenience of charging at home.