Here is mine with 636 wheels in liquid black. I love the style of the wheels but the liquid black is too shiny IMO as at times from some angles they look like they are chrome and I would prefer them to look a deeper black.
Other mods are the M Performance exhaust (muted sound of standard 540 sucks) , boot lip spoiler painted in body colour and also painted the front wing vents body colour as the gloss black didnt look right on the grey bodywork. I still need to get rid of the chrome on the door handles - horrible design with that naff chrome insert!