In 2011 Renault unveiled the Renault Megane III RS Trophy limited edition (500 examples) and one year later, they launched the Renault Megane III RS 265 (in Sport, Cup and Trophy chassis versions) which benefited from the same engine upgrades. The 2.0 liter 16v twin-scroll turbo F4Rt engine produced 265 hp (195 kw) of power and 360 Nm of torque, combined with a 6 speed manual gearbox. This 15hp power increase came from the uprated maximum turbo pressure (2.5 bar) and the revised air intake design. The car accelerated from 0-100 km/h in 6,0 seconds and could reach a top speed of 254 km/h (158 mph). The Cup variant came with a stiffer chassis, track focused suspension, a limited slip differential and a slightly lighter gross weight.
Like the RS 250, the RS 265 came with a a sporty bodykit including more sporty bumpers with integrated LED daytime running lights, front splitter, extended side sills, wider wheel arches, 18 inch alloy wheels, central exhaust tailpipe and rear diffuser. Inside it featured aluminium pedals, sporty steering wheel, analog rev counter and sport seats. Visual changes from the previous RS included wider LED daytime running lights, redesigned headlight graphics and new 18″ Tibor wheels.
In 2014 the Renault Megane III RS (facelift) replaced the RS 265.