If you've got an iPhone and want to do a little...performance testing of your car, check out BunsenTech Dynolicious. It's a $12.99 app, available in Apple's App Store, that uses the iPhone's built-in accelerometer to measure your car's 0-60 and quarter mile times, along with its horsepower, its lateral G's, and more. The app also saves all the data so you can track averages and historic trends.

This is obviously a modder's dream, assuming it works as well as the company implies; mod fans can add a part to their car, say a new air intake or a chip that increases turbo boost, and then redo all the performance tests. The company said in a statement that Dynolicious has been track-tested at a major drag strip "against regulation timing equipment," and that its accuracy is comparable to standalone performance meters.