Elaboration: 996 had IMS bearing problems mostly, and yes, 997.1 generation.A few are well documented like the engines in the 997.1 and Caymens due to the IMS bearing turn into scrap metal, in which a class action suit was done that forced Porsche to fix some of them. I think Vettes has problems with lifters and dropped valves a generation ago that popped a few motors. The Focus RS had the head gasket issue too.
Speaking of that, the class action suit came about, I THINK, when owners were on the hook for the failed engine repair bills when out of warranty (because an IMS failure DOES basically blow up the engine destroying most of the metal inside, rather than just burning too much oil! LOL). So as long as Ford keeps standing behind the Voodoo by either replacing or buying back failed engines, I don't think there are really any damages to sue over.