About K0

We Build What Car Culture Was Missing.

K0 started with a simple frustration: there was no fast, clean way to share your build with someone standing right in front of you.

At every meet, every show, every parking lot encounter, it was the same routine. Someone asks what’s done to the car. You rattle off a mod list from memory. They type your Instagram handle into their phone. Half the time they misspell it. The moment passes.

We thought there had to be a better way. So we built one.

The K0 SmartKey™ is a premium carbon fiber key tag with an embedded NFC chip. One tap from any smartphone opens your car’s full digital profile — specs, mods, build history, photos, and your story. No app download. No QR code. Just tap and share.

Every SmartKey is cut from real 3K twill weave carbon fiber with a matte UV-resistant clear coat. It’s designed to be carried every day, on your keyring, right next to the keys to the car it represents.

K0 is based in Plainwell, Michigan. We design, manufacture, and ship everything in-house. Every unit gets the same attention we’d give our own builds.

Our Mission

Give every car a digital identity. Make sharing your build as effortless as handing someone your keys.