Rumours out of Europe indicate that a coupe model is under development, planned to rival the Audi TT and next-generation Mercedes-Benz A-Class Coupe.
If the new car gets a production go-ahead it will mark the third time Opel has used the GT badge, first launched in the late 1960s, and revived again on a rebadged version of the Saturn Sky between 2007 and 2010.
Set to debut at the 2016 Geneva Motor Show, the new coupe will sit atop a version of the Astra’s D2XX platform, with a lighter body, 2+2 seating, and tightly-drawn roofline.
The Astra range will also likely donate its range of turbocharged three and four-cylinder engines for the front-wheel-drive coupe. A range-topping OPC version isn't out of the question either, utilising the stove-hot turbo four from the as yet unreleased Astra OPC hot hatch.
Opel will be closely gauging the public’s reaction to the concept, to determine its production future. If the GT does get a production green light it could be in European showrooms as early as 2017.
A convertible version could also follow, with a folding soft top, keeping the emphasis on lightweight performance, leaving the larger Cascada convertible as a more comfortable ‘tourer’.
With Opel set to become the primary source for Holden’s passenger vehicles in the near future, the GT could go on sale here, wearing lion badges front and rear.
Although destined to be a low-volume seller alongside the five-door Astra when it arrives, the GT could act as a small car performance flagship for the brand. Toyota’s 86 coupe, the Mazda MX-5, and Hyundai’s Veloster would all be on the radar as potential rivals.