iOS 27 delivers CarPlay's biggest update in years, but feature availability depends on your vehicle and iPhone. Universal improvements include custom widgets from any compatible iPhone app, audio scrubbing with a progress bar on the Now Playing screen, Apple Music Filters for library sorting, 14 new Celosia wallpapers, natural language Maps search, and better wireless reliability — all working in any CarPlay vehicle.

Features requiring automaker support remain limited. Video apps need certified AirPlay video integration, which no manufacturer has announced yet; playback only works when parked. Route sharing to a car's built-in screens also requires vehicle support.

Siri AI with conversational context and cross-device sync requires an iPhone that supports Apple Intelligence and joining a waitlist via Settings > Siri. Developers have a voice control template for CarPlay apps, but adoption will be gradual.

Bottom line: most iOS 27 CarPlay upgrades work immediately with a recent iPhone. Video and route sharing depend on future automaker updates.