Dynolicious Auto Performance Meter for iPhone and iPod Touch. Cost: $12.99 (not including the iPhone or iPod Touch) The Promise: Using the Apple device's built-in accelerometers, the Dynolicious ...

It seems as though every time we turn around, there's a new performance measuring tool for us number-crunching bench racers. In previous issues, we've looked at the G-Tech Pro Competition meter as ...

The Tesla Electronics G-Tech Pro Competition Performance Meter is an accurate, affordable way to measure the performance of your vehicle. - 4Wheel & Off-Road Magazine ...