This would fall under Big Sky thinking but I’d love to have some kind of visual queue when a rider in front of me drops the hammer. Being that this is a virtual world where anything is possible I wouldn’t even mind if their body flashed with a translucent glow like the AIs. This would be much easier to respond to than scanning for their name and reading their tiny w/kg display.
You could easily take this a step further and add a different color glow when riders are using the power-ups; light green for the feather, white for the van, etc. Maybe Red to match the w/kg as you do in the rider list on the right.