I've just picked up Trackmania Nations 2. I'm playing Staduim online, but when I'm racing I'm getting distracted by the other players nametags above other players cars (see screenshots below). Can I dim these or make them smaller so I can see the track ahead easier?
Yes you can, and its really simply too.
This option is located in your Settings before you launch the game. Launch the Main Window, then click Configure. Go to Advanced, then the Game tab. Under "Player info. display type", select whatever you like for it.
This will alter the opacity of the other driver's name tags.