Re: Fiat Marketing - Campaigns, Advertisements, Sales Promot Well Its true and we are getting one GPS unit free. 1)The thing is FIAT sends a message to which you reply in the specified format including the name and details of the person whom you have referred to. 2)FIAT then calls up that person to verify if he really is going to/booked/bought the car. 3)A message/call is given to the person who has referred saying that he has to give the invoice details of his car and the invoice details of the person he has referred to. 4) If that invoice no. is not available (like in my case) then they give us a id no. on which we get back to them to inform the invoice no of the new car. 5) FIAT then informs this to the dealer from where the first car has been bought to issue the GPS unit to the customer.