I think he means that because there's the line that goes around, it doesn't make much sense.
Exactly...no
car in blockland could ever make that turning radius.
The plate would have to be a 48x48 or 64x64 to fit in well, and have a good sized radius suitable for blockland vehicles. Should also have a little "island" in the center, like so:

Edit: lol I like how if you watch the greenish-blueish car that comes in from the right, makes a complete U-Turn...but you get the point.