Actually there are three different rev V120 , V150 and V500.
I wonder want is difference between them and how many each of them failed or not failed.
Yeah I know there are three, but so far as I can see, first was the V120, then briefly the V150, then lastly the V500. I assume this is the order, anyways.
It seems the V120 switched to the V150 in August or September, and we don't know if/when they switched to the V500, but we do know V500s were used in December builds.
Going off of the data thread, there were many failures for September build, one for October, and one for November, but none for December. If in fact they switched to the V500 from I guess the V150 in December, this could indicate that cars with the V500/December Build is considered updated and less vulnerable to failure.