If you are making CDs for you car, it really doesn't matter which one to use, you won't hear any difference. It is more important to find the format and the brand that is most compatible with you car system. Generally speaking, more CD players can play CD-R than CD-RW and the disc made by Yamaha and Fujitsu are higher quality (less data error).
Having said that, My suggestion would be to use CD-RW for test burning because they can be reused. And once you are happy with the result, burn the final version onto CD-R for maximum compatibility. I would also buy a small quality of each brand and see which one works best in your system and buy the cheapest one that works.
Having said that, My suggestion would be to use CD-RW for test burning because they can be reused. And once you are happy with the result, burn the final version onto CD-R for maximum compatibility. I would also buy a small quality of each brand and see which one works best in your system and buy the cheapest one that works.