Automatically opening and closing doors can be retrofitted?

Hello forum. I am interested in the question mentioned at the beginning with regard to a show car project vehicle. I hope this is the right forum for this. Is there a possibility for the electrical opening and closing of doors for retrofitting? But not in the form of the well-known soft-close technology, but as for example the new Rolls Royce or Maybach has. The doors open completely at the touch of a button and close completely again at the touch of a button. anything on the market? Whether with or without approval and whether China, Amiland and Co? VG Tom