quite possibly, what does it allow you to measure? just 0-30, 0-60, 0-100 etc?
See here link to manufacturer's web site
http://www.performancebox.co.uk/performance_meter.htmlSome guys who used it before here might be able to comment
And some extracts
Not only is the new PerformanceBox the most sophisticated Performance meter on the market, but it is also one of the simplest to use, with many features normally found only on professional test equipment. You can quickly measure the acceleration, braking and cornering performance of your car without having to set anything up beforehand, and there is no need to perform any calibration. Because PerformanceBox is based on GPS, you get so much more for your money than just a simple performance meter.
PerformanceBox uses a GPS system with an update rate of 10 samples per second, which is the fastest GPS engine in its class. From this you get a very accurate speed (±0.1kmh), cornering g-force, acceleration g-force and a very accurate distance measurement (±10cm in 400m).
Performance ranges and units are fully user adjustable, which means if you want to measure a specific acceleration or deceleration range, for example 35-65, then this is very easy to do.
This is a cool feature
Another very powerful feature is the ability to export your PerformanceBox position files to Google Earth, allowing you to plot your vehicle's path onto a satellite image of the area.
This is the best box on the market AFAIK.
Paul