Cant Rotate Prefab

Hey Guys,
for some reason my Prefab that I instantiate all ways ends up rotated 270 degrees, but when I look at the original prefab its fine.

so 2 questions, (1). Any idea why?, (2). How can I rotate it at runtime, the below doesn’t seem to work, get an Error “Does Not Contain Transform Definition”

Transform playerModel;
Transform t = Instantiate(playerModel,playerPosition,Quaternion.identity)
t.Transform.Rotate(10,10,10);

Thanks in Advance

its t.Rotate(…)

as t already is a Transform

if t were a game object it still would be wrong, as it is
t.transform.Rotate() without capital T (which declares the class not the getter)