If anyone is still needed a rear diffuser for the votex, the one with NO cutouts that was selling for $100 from VW, this guy on ebay has them for $100 (OR OFFER). I just got one from him for $50+12 in shipping
He has more!
NEW OEM BOXED REAR DIFFUSER 1C00716119AX BEETLE TURBO : eBay Motors (item 220558268747 end time Mar-19-10 14:37:45 PDT)
ENjoy!