Llantony

Sounds a daft question:are these the same thing?  I ask because after paying for the carte grise we were told it would arrive in 12 days. The Certificat d'Immatriculation arrived very quickly but when I went to my insurance agent, she said to wait for the carte grise.  After a few weeks I phoned the prefecture and was told there was a 2 month wait.  That was 10 weeks ago.  Our cheque for 200 euros has not been cashed. Looking at the thing we received, it has all the info we'd expect on a log book, so is it actually the carte grise? It is sort of greyish!  In which case, we have been worrying about nothing.