Re: Is this a for a "B"
My best guess...no. The car that goes on has a roll bar and a larger, squarer cockpit. Look at the distance from the head rests/ roll bar openings to the back edge with the roll bar notches on the corners. To my eye, that's MUCH bigger than the space behind the headrests of a B to the back edge of the cockpit.
No good guesses what it IS for though.....sorry.