eltomito {l Wrote}:1) When I try to collect the nitro that's on the down ramp behind the railing near the beginning of the track, my kart automatically rescues.
I didn't notice this changed, I changed the behavior of a transparent material used there too. I'll add a quick fix.
eltomito {l Wrote}:2) Could give the players more view of the sea? It seems to me that some buildings on the left side of the tracks near the beginning (e.g. in those two fast curves) could be removed completely to reveal the sea!
Good idea, I'll see what I can do.
eltomito {l Wrote}:3) & 4)
I do want to keep things simple and not change the track too much, at least for now. I might add some more archways or buildings that border the road, and enclose the shortcut, but I don't want to put a house in the middle of this track. It would be fun, but maybe on another track.
eltomito {l Wrote}:5)
I like the idea of grass in there, I might add a little bit later. I do want to keep the track smooth since it is primarily for a high-speed racing experience and unpredictable bumps are unfair. That said, it would be nice to have in a more playful track, like an off-road one I have planned.
eltomito {l Wrote}:6) How about adding a food stand/kart somewhere?
That was the plan for the wide space after the first U-turn, but I had forgotten. Thanks for the tip!
Again those are all great suggestions in my opinion, although some of them I don't want to try on this track.
tlbomb {l Wrote}:[...] a rocky steep coast with a medium-sized harbour; both I kinda miss here

I see your point, although there's only so much I can change now. I do plan to add more boats to create an actual harbour in front of where the lighthouse is, but there are many priorities, like fixing the fake houses!