We have now added the facility for PayPal Backers to have a badge displayed next to their profile, just like the Kickstarter backers.
Your Carmageddon.com email must match the email you used for PayPal otherwise we cannot match the two up. The badge will be automatically assigned to you once you login - if you are already logged in, log out and log back in again. You should get a notification bar pop-up once its been assigned to you.
Please be aware that this is once again a manual process due to some required changes on the Backer site so if your still not seeing your badge please PM me and I'll correct this for you.