So the car that was hit, was thinking he was in the all clear to turn left when all of a sudden 120mph or faster cars fly up and boom?
Prolly just got the arrow and started to go without paying attention to the cars coming.
I deal with this every day. The main street I live near in Phoenix is notorious for people going 20-30 mph over the limit with a hilled bridge over the canal that's hard to see over. Drivers get pissed when everyone pulls out and they have to slam on their brakes but it's impossible to tell who's going the speed limit and who is doubling it when they're coming head on. A jeep was inches away from hitting a truck in front of me just this morning.It's nearly impossible to tell the difference between 40 and 140 when they're coming straight at you. People tend to forget this.
It's not a green arrow. It's a green circle, so the non-racing driver should have yielded the right of way. But he probably saw two sets of headlights way down the street and didn't think they were doing 120+ mph. Driver would probably have had time to cross if the two idiots weren't racing.