14 April 2021 12:28 pm / 2 comments With the engineering of UK-based Mellors Elliot Motorsport (MEM) providing the support for various rally campaigns entered by the Proton Iriz R5 rally car, we’ve previously known the Malaysian B-segment hatchback to be powered by a version of the 4B11 engine that comes from the Mitsubishi Lancer Evolution X. As it turns out, the heart of this rally car originates closer to home in Malaysia. This 4B11 engine that provides the basis for the powertrain in the Iriz R5 rally car is actually sourced from Shah Alam, pulled from the Proton Inspira. The engine’s rather more mainstream origins compared to the Lancer Evolution matters little, as only the engine block and head area used, with competition-grade products used for parts such as the pistons, connecting rods, crankshaft, camshafts, cylinder sleeves, turbocharger and the like.