You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
The silver are definitely silver Arachnids, the gray ones on the car are not Arachnid-sorry. They must be 21" something because the tires look as though they were taken off the Arachnids. I don't think those rims on the car are Tesla Turbines and definitely not slipstreams either.
I think after close inspection of the photo showing the plastic center cap those on the car are Twin Turbines/Sonic Carbon color.