As I always understood things, a verbal contract especially w/ documents to support it is VERY strong...unless a written one was done after it which would then make the verbal one dead! .
If you really want the car, it's HAMMERTIME!!! .
Get a Lawyer on it NOW...review the deal and if there's a provision for a closing date, proceed as so! .
I'd consider giving (in writing) the seller ONE opportunity of completing the deal without laying legal costs on him...but stating he will be responsible for legals costs and more if he choses to not close the deal or make his intensions to proceed clearly known immediately! .
Best of luck!!! .
~ Pete
