Wow thanks for the input ! That was some interesting bit of information.
That means the Hot Wheels 2003 Regular edition is in fact screen accurate ?
It has this "satin/matte black" color and the wheels & engine are smoked chrome, not black.
On several "showroom style" Batmobiles, everything is glossy black : the car, the rims, the engine, the exhaust, everything. It looks really cool but unfortunately, even on the "glossy black" 1/18 Hot Wheels Batmobile, the rims & engine remained smoked chrome...
To make it look correct, one should take the whole car apart and spray some gloss black paint here and there.
Maybe I should buy the glossy one and do the modifications myself to have both versions...