Curious what your car does 0-100? 100-200? Dragy is the perfect and cheapest option in the market.
 Dragy uses high-speed GPS satellites to accurately measure your vehicle's performance within 1/100th of a second. The Dragy software automatically maps the slope of all laps, which you can then post on forums or social media, share with friends, or even upload to the Dragy leaderboard. The Dragy box is extremely compact at 1" x 3" (25.4 mm x 76.2 mm) and can be set up on the dashboard when testing and stored in the glove compartment or center console when not in use.