The cynic in me says that this may be a scam -- I hope that I am wrong; but if anyone is serious about this, I would proceed with caution. The wording is not quite right. Talks about putting a deposit down and then the car will be done three months later -- yea right like anyone of us would fall for that.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .