Dsl du double poste, mais je viens de trouver ça sur un forum de steam :
" Most Wanted [developer]
Hi Guys. First of all, let us apologize for the lack of response on the forums (as usual, some people thought it's other people's responsibility to answer, so in the end nobody did anything...). We appreciate that many of you would like to have configurable keys in the game, so we are going to implement this option in a patch shortly"
Donc en gros les developpeurs sont au courant du problème, et ils vont sortir un patch bientôt.