Hey Ash! Very Nice Car but Nicer Parents!!!
I like the AMG twin 5 spoke wheels myself... see first pix below...
I'm 100% with Greg... his wheels looks correct and proper for the car... but don't go over 18's unless you only drive on glassy smooth streets, as the potholes will bend/destroy the taller rims in short time.
Hopefully, you do not live or drive in New York!
As for chrome... it's up to you if you want more Bling or not. Chrome will stand out, but is much easier to keep clean than the standard painted silver wheel.
There are newer AMG style wheels available but they look like Rotating Starfish hanging onto the tire! I don't like them (see second pix)... also the one's with a lot of spokes will take too long to clean for a busy girl like you (spend more time enjoying the drive, then cleaning the wheels!).
Oh, don't mount any tire except for the new Michelin MXV4 Primacy which has an improved wear factor of 600 for long life and a very quiet smooth ride.
The COMBO will be pricey but maybe you can get the AMG wheels used if you are not in a big hurry and the Michelin's new from Costco?
Say, maybe your parents can give you an early Birthday/Christmas present?
Good Luck..

Mike