# What Is A Smart Key For Cars And How Does It Work?

> It's wild to think that not too long ago, we were all turning physical keys in car doors and ignitions. But today, many new cars don't come with keys at all anymore.

- **Source:** [SlashGear](https://www.slashgear.com/1900735/smart-key-for-cars-how-it-works/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6867cbbcca5cd29034969a2d)
- **Published:** 2025-07-04
- **Category:** Cars
- **Tags:** #ev #mercedes #cars #smart #does #keys #work #anymore
- **Canonical:** http://localhost:4321/a/6867cbbcca5cd29034969a2d

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._