In my opinion only... this is the kind of toolery I refuse to tolerate. Clients that start off by "Do this, do that, appease me, impress me, make my wildest dreams come true..." and dangle a carrot in front of your face, are the ones I show the door to.
I have turned down clients before, and will continue to do so, when I pick up on the attitude and expectations I will never indulge with my time or attention.
Now, maybe the client has a Bugatti Veyron, but even so... your portfolio of work, Facebook uploads, Instagram images, and so on and so on including your website galleries should MORE than serve as evidence of your workmanship. Again, in my sole opinion, if anyone ever showed up at my home with a hood and said "Make it shine," I'd ask them to leave and explain to them they are not who I want to work with.