Remove and clean the plastic covers
Sand them to let the primer key
Spray with 3 coats of plastic primer
and three coats of rattle can red
Oil cap silver to contrast
mask of BMW carefully and spray silver
Realise the black plastic exhaust looks a bit crap
Bin bags taped around to mask the rest of the engine and then some aluminium coloured high temp paint
and from this angle you can't even see the silver overspray :-)