Want to keep tabs on your teenage kids' driving habits? CarChip gives you an easy way to do just that. CarChip monitors 300 hours worth of mileage, speeding, braking, acceleration, and data on what happened the last 20 seconds before a crash. The CarChip costs $119 and can be used with any post-1995 car. Parents can remove the CarChip, and download data. CarChip also manufactures models specifically meant for business owners with one or more company cars.