General:
-Ingame chat. I know it's not probable but I keep missing it. What if I race with the same players for years but never speak a single word to them. Thats weird.
-Ingame buddie system. I only add buddies to my PS4 account who I know really well. And in TM I add anyone who I know a little. So I want to keep the world of TM and PS4 seperated.
-Online in screen: "Player X Took First Place".
-Better volume balance in sound/music.
-Being able to delete your own tracks, either private or public. Yes, I'll keep whishing for this.
-Faster score list animation, or rather remove animation. Quickly checking the score list while driving makes me crash. When you press the right shoulder button the score list scrolls in from the right side of the screen and when released it scrolls out of the screen again. Although it goes fast it's not fast enough. A solution could be to remove the scroll animation so the list is instantly shown. And make it smaller and transparant.
-Horn!

Editor:
-Internal cams
-Remove help text. I learned editor controls on day one, no need for keeping the help text. It's only in the way.
-Dragable decoration and road blocks.
-Copy/paste tool. Although the single block-copy-tool is already very efficient.
-Platform borders without arrow animation (plain black).
-Half platform block to compensate for the lack of the dragable inflatable.
-Transition from grass to road.
-Save as new: add a question "yes or no". I accidentally pressed this too often.
-Better way to make screenshots.
-Red inflatables.
-Sign with red cross (wrong way).
-Warning sign (there's an achtung sign but I'd like it in english).
-Shadows less dark. Some places are completely black.
-Place car anywhere for test run.
-Start always first in list of checkpoints (in test run).
That's it for now. I'll add anything that comes to mind.
