Thank you so much for your thorough feedback, this is exactly what I need right now. I'm seeing an overarching theme of "NEEDS BETTER INPUT" haha. I will address some of these issues by adding a controls settings window, I'll make that a priority to allow flexibility in the game. I made a bit of an oversight when it comes to mouse related controls, I've been building this on a laptop (using trackpad...) for the last 6 months of it. Amazingly I didn't even consider the fact that the dpi of a track pad might be a bit just checked, insanely low! I'll add a sensitivity slider in the next update.

Vehicle physics definitely need work in genera;, I'll be honest in that I am having difficulties finding the right settings for my wheel colliders ATM. A vehicle reset will be added in the next update. Regarding momentum and snapping issues; I've been trying to code a mesh deformer for the cars but am having some serious issues with allowing meshes to deform realistically when attached to an active object. The result is swapping meshes out at vehicle Entry/Exit for the moment. It's really dirty, but I am writing a limiter in currently so hopefully I can have player vehicles deform. I will try to at least have vehicles properly aligned if the deformer doesn't make the next update.

IMG1 - On their own? uh oh

IMG2 - A handsome small floating cube!

You didn't drop under 150 frames? Did you use the gun car or scud launcher by chance? My poor GTX 1080 bogs right down if I level more than 25-30% of the city, that's relieving news. the GPU usage is pretty high, I believe there is a bug where dust particles try to spawn but are denied, triggering  wasted render time, I will look into this as well.

Some of these are quick simple fixes, I plan on getting through these as quickly as possible, thank you for the reset player plane idea, I will definitely be implementing that. I really appreciate you taking the time to write this up! Fixes will hopefully be ready within a few days.