MG/AER XP-20, straight 4 cyl, 4 stroke, petrol engine
until 2002: 500 hp
2003+: 450 hp
DOHC, 4 valves/cyl - 16 valves total
aspiration, 1 x Garrett turbocharger with multipoint electronic fuel injection. 1 x 43mm inlet restrictor
water cooled
dry sump

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