Volkswagen is planning to unveil an extreme version of its new fourth-generation Golf R at the Beijing motor show in April showcasing new driveline and lightweight construction technology that is being considered for inclusion on limited production road cars in the foreseeable future.

Expected to carry the name Golf R Evo, Volkswagen’s latest show car is rumoured to run a powered up version of the EA888 engine used by the standard Golf R complete with a new cylinder head and induction system among other performance enhancing tweaks.

Engineering of the turbocharged 2.0-litre four-cylinder petrol unit has been overseen by Volkswagen’s head of engine development, Fritz Eichler – the man responsible for the development of Mercedes-Benz AMG division’s 355bhp turbocharged 2.0-litre four-cylinder used in the A45 AMG.

Details remain under wraps, but insiders say Eichler and his team have boosted reserves from 296bhp to somewhere in the region of 370bhp. Torque is also anticipated to rise from a standard 280lb ft to over 332lb ft.

As in the standard Golf R, the beefed-up reserves are expected to be channelled through a six-speed dual clutch gearbox and electro-mechanical Haldex multi-plate clutch four-wheel drive system.

Speaking at the recent Detroit motor show, Eichler told Autocar that advances in combustion technology had driven efficiency gains in modern day petrol engine development. When asked how much power he thought was possible from a turbocharged 2.0-litre four-cylinder, the laconic German who started his career at Porsche suggested 400bhp and up to 369lb ft was achievable.

Along with the bump in power, the Golf R Evo is likely to feature a stripped-out interior and selected carbonfibre body panels in a move Wolfsburg insiders say will see it hit the scales at below 1400kg.

The most potent Golf Mk7 so far created has been the Golf Design Vision GTI concept, a V6-powered concept car with almost 500bhp, all-wheel drive and sub 4.0-sec 0-62mph performance.