Aluminum rear brake calipers?

[Whiplash-Smile]

Does anyone recall what years/models they came on? I have seen several cars in the last year that have them installed, but everytime I start doing parts research to identify the year and model - they are always depicted as iron. Anyone know this?

 

[Mustang5L5]

All Mustangs used steel rear brake calipers. None were ever equipped with Aluminum rear calipers

Aftermarket kits like baer do use aluminum rear calipers, but their kits are sourced using rear Corvette C4 brake components.