Im trying to make some custom cards does anyone have a blank car template or something like that.

Have you taken a look at this?

http://www.fantasyflightgames.com/edge_foros_discusion.asp?efid=166&efcid=3&efidt=261944

And if You download the one from the above post (required for the one below), You may also check this one (if You want more cards):

www.gmtools.excelocms.com/download/wfrp3_adds.seext

Here are examples of some cards You can make with it:

www.gmtools.excelocms.com/lf/Examples.pdf