They're not all sport models.
However, some standard models have sports seats fitted. so it can be tricky to tell the difference sometimes.
Other differences are:-
10mm lower suspension
Different lower grille on front bumper
Coloured stitching on the steering wheel
Wheels, although they can vary
Someone might be along in a minute to point out some other differences.
Welcome to the forum, this is the best/most helpful forum I've ever been on.