Porsche has built its 963, which it will use to return to top-level prototype racing for the first time since 2017, to LMDh regulations the prototype GTP rules set for the American IMSA series. Along with Cadillac, it will race LMDh-homologated cars in the WEC against machinery built to Le Mans Hypercar regulations from manufacturers that include giants Ferrari, Peugeot and ... Keep reading