If the company conducting the survey did not identify itself, I would consign it to the trash.
I have received surveys from well known companies that clearly identify who they are. Making the statement that it is a legitimate survey does not make it legitimate.
Here is their web site.Ah, looks like I forgot to add that the other side of the card did say who they are: Research Design Specialists.
I'm thinking I'll sit on it for a while to see if any other Tesla owners have completed the survey.