I've recently started playing Re-Volt online, I never did that before as I never set it up properly until a few weeks ago.
At first, I got last every time, but the third day I played I got some better places.
It's definitely fun to play online, although I usually like the diversity of cars, which isn't there when racing online as almost everyone uses Toyeca, the best car.
And sometime it lags a little when interacting with other cars, but that's probably always going to be an issue with online multi-player gaming.