RC car spoiler

a spoiler for RC cars, i havent been able to find spoilers thats closer to this design(which is more common on real cars), so i set out to draw one myself.
it is 114mm wide, which will be too narrow for any 190mm or 200mm touring car shells, but it can be scaled to fit(since i'm making this for a mini chassis shell(M-05)
mounting holes will need to be added(i havent start on the spoiler mount atm, since i havent got the shell i'm planing to use on yet), but i've included the 123dx file for ease of editing