I had some mixed up a few weeks ago in Protec, clear over base. He couldn't do 2k as the toners have changed over the years and now Metallica are only COB. He also found the formula on computer, plus also mixed up some Marine Blue in 2k which was a very close match to the Acrylic version.
I have now sprayed the wheels and coated with 2k clear over the silver birch. Colour looks pretty close to original.
_________________
1969 Cooper "S"
1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged)

2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S