This is my creation for racing trophy

I recommend gluing the various pieces together with superglue

The back part named “plexi fume” is not necessary make with plexiglass but you can 3D print it. 

If you want to have this piece laser cut with plexi, this is the file DXF for the laser cut studio. 
I also attach the PDF file but I recommend using the google drive link to download the DXF file which is more suitable

DXF file for Plexiglass Fumè

To obtain a better result it is possible to paint the kart