I don't have the time to track it down right now but he said it, I believe on an earnings call, annual meeting or perhaps the unveil. My memory is he said less than 100 meters wiring, which would have been about 15 times less than Model 3. But as stated above, they went for commonality of systems and speed to market. They can now integrate this into the 3 and Y at some moment in the future.I disagreed with this because I cannot find a single instance where Elon or ANYBODY from Tesla said this was going to be in the Model Y, let alone "on day 1" but I'm happy go be corrected.
There was a PATENT for this super duper wiring that I'm sure was made into an "article" on that eclectictrick site with a whisper-down-the-lane "ZOMG it's going to be in the Model Y fo sho!!!" but this was just the internet deciding it was going to be in there, not Tesla, not Elon.
Fun day.