Hybrid and PHEV models get specific aerodynamic treatment including active air flaps in the front grille, an «air curtain» that directs airflow around the front wheels, a covered undercarriage, a rear spoiler, and wheels with smaller openings. (automobilemag.com)
-- The BMW X3 is based on the CLAR platform and is 50 - 100 kgs lighter than its predecessor — The new X3 features a larger kidney grille with Active Air Flap Control — Optional features include the full colour Head - Up Display, Ambient Air Package, Ambient Lighting, etc.. (motorbeam.com)
Talking about the changes, up front the kidney grille (with Active Air Flap Control) has grown in size making the front look more daunting. (motorbeam.com)