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If just knowing how fast you’re going isn’t enough and you want more details about your car’s performance, the K.A.T. Matrix 3-Axis Accelerometer is the thing for you.

This smart little device can measure your braking force, cornering, horsepower, G-force, 0-60 second acceleration and 1/4-mile time/speed and can be mounted on your windshield with the included bracket (just make sure your state/national laws allows it). It’s battery powered, so you won’t have cables in the way, and the included 3 AA batteries will power it for about a year.

So, if you’re really proud of your new car or just curious about its performance, $60 shouldn’t be too much for this gadget.

via.