Yes, but it depends on what CD player you use. Almost any CD-R can be used to put mp3 songs on it. I burn CD's with music on them all the time, but I have to make sure that I use the same CD player...
Newer cars can play almost any CD. Many older cars have players that will not play CD-R or CD-RW. If your CD player and the user manual do not show the CD-R, CD-RW, or MP3 logos, you probably will...