That's a replacement part for an Audi A4 Avant, if you broke the knob/thumbturn of the warning triangle braked.
I only publish this thing to show you, that you're even able to produce things better than big players. I don't think it's necessary to own such a car. In my opinion there are others - more intelligent and responsible possibilities to spend so much money.
...and riding a bicycle saves you the money for the fitness center... ;-)