It is based on a http://www.thingiverse.com/thing:6025
This shift knob is designed for Renault tuning short-shifter: http://www.aliexpress.com/item/FOR-RENAULT-CLIO-MEGANE-FIVE-PRECISION-Short-Shifter/1179312525.html
The original knob I do not like because it all-metal, cold and heavy.
shift_knob.stl | 1.2MB |