That's a great idea Nick_Furry! People could build faster and weaker hulls or slower and much stronger hulls, just go crazy! But not too crazy because there will be limits and it could be nerfed. Thumbs up from me, Nick_Furry.

A hull with adjustable parameters! (Adjustable in the garage). You have a number of points you can put into speed, armour etc. And you upgrade the maximum you can adjust each parameter to. This would allow people to customize and effectively build a hull of their own! Would be difficult to balance but you could mute the number of points, which will reduce it's overall effectiveness in favor of flexibility. The design could be a simple medium sized box shape or something else that is plain.

I would like to see a remote control rocket launcher! You fire it and steer the rocket around the map until you hit something. But it leaves your tank vulnerable! This would be a ton of fun IMO but you would have to balance it with damage / knock back force and maybe area effect damage. Excellent at range but poor at mid and short range. Could be similar to use as shaft.

I would like to see the re-spawn time in Parkour battles reduced to 0s when you press delete. The countdown is not necessary as there should not be a penalty for flipping over in a game mode that is supposed to be fun and is not competitive, it just wastes time. If you are doing allot of jumps and fun stuff you can end up spending 5-10 min waiting to re-spawn which is an unnecessary waste of time and is not fun.