New to Me 2009 Z4 35i

I just sold my prized Acura TL Type S and picked up my 1st Bimmer ever. This Z is a Loaded 2009 Space Grey Metallic Z4, sDrive35i- Premium Package, Cold Weather Package, Navigation, Black Kansas Leather, 7 Speed DCT, Premium Sound Package-6 Disc w/DVD, Servotronic, 18" Alloys, Comfort Access, Rain Sensor, Ash Grain Interior, all BMW Services, Sport Wheel with Paddle Shifters, Park Distance Controls, Anti Theft, Auto Climate, Larger Alternator, Wind Deflector. LOADED.
One former owner with 26K miles, fulllocal BMW serviced car with HPFP replaced.
My mods to date- Smoked Front and Rear Reflector and Smoked Side Markers, Smoked 3rd Brake Light, Gloss Black Painted Grill Inserts, Ferrari Red Painted Calipers, Front Bumper Clear Mask.
Mods to come- Ash Grain Dash Kit (select), 20% Window Tinting, Carbon Fiber Wrapped Engine Compartment, Lower Front Grills, Rear plastic deck (viewed when the top is down) and Rear Valance. Interior LED kit and LED Angel Eyes.

Fantastic car and blows away the Acura in all area- performance #1, styling, etc.
Any mods the members have done or are doing as suggestions would be appreciated.