The model is for RC car scale 1/5.
It is a copy of the original Speedline Montecarlo with brake vent.
There are two files for the brake vent:
SINGLE SOLID: it is the model for the printer with one extruder (one color);
DOUBLE SOLID: it is the model for the printer with Palette or with double extruder (for 2 colors, one for the disk and one for the Speedline logo);
Infill: 40%
Layer: 0.16 mm
Material: PLA
Nozzle: 0.4mm
Support: yes
We recommend white for wheel and carbon or black for brake vent.
The author hasn't provided the model origin yet.