While the 4.0-litre MDG engine utilises natural aspiration rather than forced induction, effective thermal management remains essential for high-revving track cars. Maintaining stable fluid temperatures is critical to prevent the engine control unit from restricting the 394 bhp output during extended circuit sessions. Optimising heat dissipation frequently involves upgrading frontal cooling capacity with enlarged centre radiators, installing heavy-duty oil coolers to manage internal friction temperatures, and ensuring efficient fluid circulation across the engine block via uprated water pumps.