2006 Citroen C6 I

Rear perspective emphasizing the sloping rear window, distinct vertical tail light clusters, silver body color, and the clean elegant styling of a classic sedan.

Rear view of classic sedan with distinctive tail lights and sloped rear windoworder_242 from Chile, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons