Tristeez

First off, I'm here to only ask what the specs are of these wheels. I'm just visiting from VW Vortex.

Anyways, here are these AMG wheels. I've figured the fronts are 18x8.5 +44 Offset, but what about the rears? They're the same style of wheel except multi-piece. What would be the width and offset? I want to make sure these would fit on my Jetta. Thanks for any help! No rude comments about me being a VW guy, don't know if you guys get along with us but Im here in good faith if we dont see eye to eye