Yes, you need a driveway turntable

I like that idea.
Or parked on an EZLift with castors.
A general search pulls up results such as, "awful, a joke, State of Rhode Island, etc. It's sooo bad that if one has to ask, he/she probably shouldn't drive it. It's THAT bad that it's never been worth measuring. It's the Rodney Dangerfield of radii. LOL
Hoping to avoid taking my own out of hibernation to get the numbers.
This may be the single most useless bit of 3W' factoid to report back upon.