The phrase "sill plates" refers to a flat, horizontal piece of wood or metal that is placed at the bottom of a door frame or window opening. It helps to support the structure and provides a surface for the door or window to sit on. Full definition
On the inside, the BMW 7 Series M760Li xDrive is equipped with door sill plates with an illuminated V12 logo, exclusive M leather steering wheel with M logo and Pearl Gloss Chrome multifunction buttons, exclusive speedometer featuring the model designation and a dial extended to 330 km / h, M pedals and M driver's footrest. (indianautosblog.com)
Inside, the BMW M Performance model sports exclusive M leather steering wheel with M logo and Pearl Gloss Chrome multifunction buttons (on its spokes) and shift paddles (on the reverse), door sill plates with illuminated V12 logo, exclusive speedometer featuring the model designation and a dial now extending to 330 km / h (205 mph) in the instrument cluster, M pedals and M driver's footrest. (indianautosblog.com)
On the inside, the 2015 Mercedes C63 AMG gets a flat - bottom steering wheel wrapped up Alcantara leather with silver accents, all - new instrument cluster and illuminated sill plates with carbon fibre accents. (motorbeam.com)