Tightening emissions regulations around the world mean that the current Subaru WRX STI will soon go the way of the dodo. Although a replacement for the rally-bred all-wheel drive sports sedan is still several years away, the small Japanese carmaker has whet our appetites with the Viziv Performance STI Concept, unveiled at the Tokyo Auto Salon last week.

Essentially a more hardcore version of the already pretty bonkers Viziv Performance, the STI variant throws on a more aggressive front bumper, side and rear skirting (the latter underscoring a huge rear diffuser) and a massive goalpost-style rear wing, along with copious amounts of pink highlights and STI badging.

Subaru has released precisely zero information about the car, but the next-generation WRX STI will almost certainly ride on the new Subaru Global Platform that also underpins the new Impreza and XV. Details have yet to be ironed out; however, the company is considering various powertrain options, whether it be petrol, hybrid or even electric.

Subaru isn’t the first to look to alternative fuels to power its performance icon – rival Mitsubishi, which itself dropped the Lancer Evolution in 2015, has revealed an all-electric, all-wheel drive SUV concept called the e-Evolution, pointing to the future of the hallowed nameplate.

GALLERY: Subaru Viziv Performance Concept