Vector Pro GX1 is the fast, easy way to learn the facts about vehicle performance. The portable, high-tech Vector Pro GX1 measures acceleration (0-60; quarter mile times and more), cornering, horsepower and G-Force.

Vector Pro GX1 utilizes an LCD display, has a standard power cord, and has no data download capability.

It suction cups on to your window and its as simple as hitting a calibration button

Bought brand new a few years ago for over a hundred bucks, used it once and ended up on a shelf.

$50.