Mp3 files for use in car mp3 player


I am fully aware of cue files to split large mp3 files into audio cd types with tracks.
I have some large mp3 files which when listening on my comp are fine cos I can skip through them using my player, eg. winamp.
But when I create a cd of mp3 files for my car, the track search on my player is fairly gash so skipping through a 2 hour mp3 set whilst driving! lol can be fairly monotonous!!

I was just wondering if theres anyway to create points/track markers within an mp3 file without splitting a set into its individual tracks and having annoying gaps when it changs between them?!