Thanks. Figured that out when I was in a more slow-moving situation (a simple carjack) and could see the dot appear when the driver came at me.
Just discovered racing - automobile "land races", specifically. Very fun, when there are people racing to win and not trying to see how many other drivers they can slam into and knock off the course. I guess in any online game, there will be those set on spoiling others' enjoyment. I don't mean "honest" pileups caused by hard driving, but having someone pull up next to me, swing wide, and then hard over into my car. It's very obvious, and as I have low-level cars in my garage and/or use the stock cars for that race (because I don't own a Super, for example), almost everyone is faster than me - but that won't always be the case.
All in all, though, this game is worth every penny I paid for it.
I'll try to post less often about it, but I'm just really diggin' it right now.