Spring 2023 - 21 - Full Nascar

originally created by Nadeo
I took the liberty of modifying some sections of the map without changing it too much :
-> Start : a start and a multilap separately with 1 straight tilted road
-> Plastic landing : remove plastic and adding magnets roads instead
-> Dirt turn : remove all dirts parts and adding classic road instead
-> 180° turn : enlargement of the turn
-> Finish : remove dirt road part