# The California Motorsports Company

> A motorsports company based in San Francisco, California, and makers of Trackside, an iPhone GPS lap timer and telemetry app for track days.

## Trackside

Record unlimited sessions for free with your iPhone, a supported RaceBox or Dragy external GPS receiver, or a compatible Porsche's vehicle telemetry. Bring live lap timing, delta, and recording controls to Apple CarPlay. Review lap comparisons, sectors, an optimal lap, onboard video, friends-only leaderboards, and tire logs.

Trackside Pro adds telemetry-backed AI insights, reference-video comparison, telemetry video export, full lap-data sharing with friends, and optional read-only MCP connections for ChatGPT, Claude, and compatible clients. MCP requires Pro, Sign in with Apple, telemetry/location upload consent, and assistant authorization; it excludes video.

- [Trackside product page](https://www.californiamotorsports.co/trackside)
- [Detailed product overview and MCP setup](https://www.californiamotorsports.co/trackside/index.md)
- [Download Trackside](https://apps.apple.com/us/app/trackside-gps-lap-timer/id6796196239)
- [Garmin Catalyst import guide](https://www.californiamotorsports.co/trackside/garmin-catalyst-support-logs/)
- [Privacy policy](https://www.californiamotorsports.co/trackside/privacy/)
- [Agent information index](https://www.californiamotorsports.co/llms.txt)
- [Public sitemap](https://www.californiamotorsports.co/sitemap.xml)

Trackside requires iOS 17 or later. Hardware capabilities and import support vary by source and export format; see the detailed overview. Current subscription pricing is in the app and App Store.

Contact: trackside@californiamotorsports.co.