You can’t blame the sales rep if the GR isn’t available in your country. The GR is a real performance car, while the GR Sport is more about sporty looks. Toyota tailors these trims differently depending on the region.
You couldn’t find anything online about the GR Corolla? There are thousands of videos and articles about it. Give it a quick search.
One starts the California wildfire, the other doesn’t.
The GR Corolla has the GR Yaris powertrain with AWD and a wide body. The Sport or GR Sport trims are mostly cosmetic with things like black roofs, 18-inch wheels, and some sporty stitching inside.
The manufacturer’s website should clear all this up for you.
Think of it like a toddler riding a merry-go-round versus that same toddler on a roller coaster. That’s the difference between Sport and GR.
The GR Corolla has 200 more horsepower. That’s the big difference.