Plug an OBD-II dongle into your car. Run a quarter mile. Gridline tells you exactly where you stack up against every stock car on the planet.
Snap a $50 OBD-II dongle under your dash. Gridline connects over Bluetooth in seconds. Reads your VIN and knows your car.
GPS + accelerometer + OBD data fused together. Reaction time, 60-foot, 0-60, 1/8 mile, 1/4 mile, trap speed. All automatic.
Instantly ranked against 200+ stock production cars. Share your results. Climb the leaderboard. Talk your shit.
Every split a real timing tree gives you — reaction time, 60-foot, 0-60 mph, 1/8 mile, 1/4 mile, and trap speed. Measured with sensor fusion: OBD-II data + GPS + phone accelerometer at 60Hz.
Your time ranked against 200+ verified stock quarter-mile times. From Corolla to Model S Plaid. Know exactly what you'd beat and what would gap you.
Tap real parts — Kooks headers, VMP supercharger, Mickey Thompson slicks — and see your projected time drop. With Google review ratings, real prices, and estimated time savings.
Global, local track, car-specific, and weekly rankings. Filter by make, class, or location. Crown emoji stays until someone takes it from you.
Buy Gridline tokens. Bet on live matchups or challenge anyone to a heads-up. Real odds, real wagers, real payouts. Post your run and let anyone brave enough step up.
Cellular-connected dongles stream data in real time. Watch your buddy's run from the stands — live speed, RPM, and splits updating as they cross the line.
Auto-generated cards with your time, splits, car matchup, and ranking. Sized for Instagram stories. The bragging rights are built in.
Bluetooth Low Energy. Works with your phone's browser. No app install needed.
Built-in cellular + GPS. No phone required at the track. Enables live spectating.
Fake chips, slow polling, drops connection mid-run. You'll get 50 data points instead of 500. Your times will be wrong.
Drop your email. We'll tell you when it's time to plug in.