The car follows on from the 280hp Mégane R.S. that was launched in spring and is based on the sportier Cup chassis version.
Significantly, with 300hp on tap, it becomes the most powerful R.S. model in history produced for the road.
This has partly been achieved by using technology taken straight from the Renault Sport Formula One Team and applied to the car’s 1.8-litre direct injection turbo engine.
Notably, the turbine – which rotates at close to 200,000rpm – is now fitted on a ceramic ball bearing system. This reduces friction by up to a third and enables the turbo to spool quicker, aiding acceleration and responsiveness.
Indeed torque has also been increased, reaching 420Nm (+20Nm) and 400Nm respectively with the EDC gearbox and manual versions that are available.
Other obvious touches are the Trophy emblem and stripes on the car’s F1 style front spoiler and unique 19-inch ‘Jerez’ alloy wheels with Bridgestone Potenza S001 tyres. The wheels have been named Jerez after the circuit at which the new Mégane R.S.01 first appeared.
However, an optional 19-inch ‘Fuji’ wheel – saving 8kg – will become available as an optional extra in 2019…
Also optional are Recaro front bucket seats, covered with Alcantara® upholstery and positioned 20 mm lower for a greater driver experience.
Meanwhile, further advancements mean the car comes with a valve-operated exhaust to enhance air flow and engine note, plus bi-material front brakes for an increase in performance but a reduction in both fade and unsprung weight.
Renault Sport F1 team driver Nico Hülkenberg has had a major influence on the new Mégane R.S.’s development from the start.
He said: "I have been involved in the Mégane R.S. development process since last year and I'm very pleased to see an even sportier version added to the family!
“Each of the new features on New Renault Mégane R.S. Trophy offers greater sports performance and feel. It's obviously positive to have more power and better grip through the tyres and to benefit from improved braking endurance.
“I also enjoyed the feeling offered by the new seats: the support they provide for sports driving is excellent."
Renault Sport has said that orders for the car will open in the autumn with deliveries starting in winter.
Keep a close eye on the Renault Sport UK website for more details.