The iPhone, mankind’s greatest invention. Your car, speed demon, cocoon of luxury, possibly both. Never before have they been combined. Until now. With these driving apps, you can measure your speed, avoid traps, and get out of sticky automobile situations. And for heaven’s sake, do keep your eyes on the road.

1. Dynolicious

This app is for all the people out there who don’t just drive cars, they drive them fast. It measures the estimated horsepower your car is putting out, the 0-60 acceleration rate, your quarter mile speed, even the G’s your car is exerting.

2. Trapster

Of course, if you’re using Dynolicious, chances are you may not be following the legally designated speed limit. But you’ll be okay if you have this app. It lets you know where the speed traps are in the city with an easy-to-use app that flashes red whenever you’re coming up to a speed wreck.

3. Iwrecked