- it has comparably as large wheels as most euro SUVs
- it looks bulky and square
- it sits comparatively as high from the ground than most euros SUV.
- it is bigger and probably heavier than most euros SUV. [1]
And many manufacturers have introduced the concept of SUV coupe like Mercedes or BMW.
Given these caracteristics, it could just be called an SUV in the euro market. The only reason it is not is because it was introduced to play on the nostalgy of a pony car of the 60's.
[1] I think what of the most sold car in the SUV category in europe is the Peugeot 2008 which is just a bulkier shaped 208 with larger wheels. The 208 is considered a small/compact car. The 2008 is barely bigger and a mustang dwarfs it.