Originally Posted by old man
looks like a McGard lock
Originally Posted by SparkieSRT6
If you can't find it hidden in the car or get it from the previous owner, most large tire shops have the various keys. (hopefully)
I support the above comments. Take the car to a Discount Tire shop, where they only do tire installs. Pep Boys is another possibility since they handle the McGard product line. They should be able to get the McGard lock off.
Good Luck,