Somebody would start chuntering 'You can't have that on a vehicle it is a danger to other road users! Years ago I had a very pretty girl with me in an open Austin Gipsy, she was wearing a very pale lemon yellow swimsuit. A hire car, Cortina (So that will give you an idea of age), came around the bend towards me with four male ocupants. Four heads swiviled in time to look at girl, and that is why the driver never noticed the granite wall. Though if we were gentelmen, we'd offer the poor girl a coat....eventually.