Are you doing work on Rick and Morty? I like these concepts. I have a similar concept for a motorcycle that looks much like "Rey's Speeder" I drew up around 10 years ago. It wasn't quite as tall, but the idea was a slightly supine position, with most of the weight in front of you, sitting much lower, and further back from the front wheel. Nice drawings.
That's pretty cool!! We watch that show religiously!
I drove a motorcycle sidecar rig for around 4 years. I regret selling that side car. I could connect it in 10 minutes, and disconnect it in 3 minutes. Connecting it always required a little finesse. I used to drive my motorcycle in 8 inches of snow. It was just like the one pictured below. Mine was black though, had the shorter windshield, a great trunk, exactly like this one. I mounted a motorcycle Headlight with the 1970's style backing, that all bikes had back then on the inside inside the enclosed third wheel on a bracket. It did not ruin the side car, and was tucked between it and the motorcycle. That thing really put out some light. People could never tell what was coming at them. A cop pulled me over once, just to see what it was he passed! I had some crazy adventures with the sidecar. It sure made camping easy, you could bring everything!
I have kicked myself in the ass for trading that sidecar for a car, but in all honesty, it was a great 1973 Toyota Celica GT which I drove for many many years. Mine was shinier than the one below. I eventually wracked up almost 200K miles on it and traded it for a 1969 Chevy Extended Panel Van, no windows. It ran beautifully!! I drove that into the ground, literally.