So Rimac won, well that was expected after Archie's video against LaFerrari, anyway its great to see positive comments about whole EV movement. I will try to help you guys at least little:
Here you can see top speed of Ferrari from Archie's video clip which is around 148 mph, so Rimac should be over that (on that video) since he was in front:
In here you can see tires which he used in that race:
And this I found on official Pirelli site this picture which could match (also I heard that Rimac uses Pirelli special version tires for his car), it seems he used them against LaFerrari.
Here is mph to kmh converter so that you dont loose time to convert on your own I already converted 148mph into kph for you.
About video, sadly I cant help you, because I have not saw it, so I could not catch that, but if you have professional tool, you can catch tires on Rimac Concept One in Salomondrin's promo (pre-race) video, around 6:10 -> 6:20.
Anyway hope this help you.