http://trackmania-carpark.com/imagespar ... e033ae.jpg
At first i thought that Bay is New York, but actually many buildings in the warp area are based on Hong Kong.
Coast = 100% redrocks Croatia.
Island - Italy, probably Sicilly

Stadium - Germany
Desert- 'Murica
Rally - Europe, some lakey place
Snow - Arctic, but japanese building makes me place it closer to Japan, so they could influence local architecture. Maybe Kamchatka?
Canyon - Murica again
Valley - Europe again, this time more calcium based rocks terrain rather than lakes area.
Storm - Mongolian hills.
I'd love to see an environment placed in the South American jungle, or African savanna. Those continents are so far untouched by Nadeo

What do you think of this?