It has been confirmed that it will be powered by a 1.8-litre supercharged engine that produces more than 205bhp, which makes it more powerful than most of its turbocharged rivals, including the Ford Fiesta ST200.
Toyota's hot hatch takes the GRMN name of Toyota's Gazoo rallying outfit's special edition Toyota road cars. Previous GRMN models, including the GT86, 2013-spec Yaris (Vitz) and the iQ, were exclusively sold in Japan.
Read more: What does 'Gazoo' mean?
The class average 0-62mph time is between 6.5sec and 7.0sec, although the car's extra power could mean that a time of nearer to 6.0sec could be possible.
Despite other cars in the class turning to five-door only body styles, the hot Yaris will be offered as a three-door only, and the Yaris itself will get both body styles.
The hot Yaris remains true to the sketch released by Toyota upon the car's announcement, with coloured graphics on the sides of the car, large, black-coloured alloys and a black boot spoiler. There's also a large central exhaust integrated into the rear bumper, and aggressive front styling. The reveal does confirm that the Yaris will adopt the distinctive manga-cartoon styling of the Aygo model, with an adapted version of its X motif across the fascia.
The model will rival a growing number of hot hatches and regular superminis, with the advent of a new Volkswagen Polo and its GTI variant, ever-rumoured Nissan Micra Nismo, and new Ford Fiesta, along with the Fiesta ST.