The Citroën C4 has evolved through multiple generations since 2004, with rear-window specifications varying by year and trim.
Most C4 models feature a heated rear demist element — a practical feature for UK winters that also doubles as an AM/FM antenna on some variants. The glass itself is typically toughened, which means it shatters into small pieces on impact rather than splintering dangerously.
From the late 2010s onwards, some C4 variants began carrying forward-facing camera systems for driver assistance features like adaptive cruise and lane-keeping support, which affects windscreen specification but does not directly impact rear-window replacement.