Give us an iPhone application that relates to cars and we're all over it. Apparently, so is the crew at Motive. They took out an Audi S5, mounted a Racelogic V-Box onto the windshield and brought along a Dynolicious-equipped iPhone to see how it stacked up.

The V-Box uses both GPS and yaw sensor data to serve up 0-60 times, 1/4-mile trap speeds and lateral Gs, whereas the iPhone only makes use of yaw information to deliver the same numbers... along with estimated horsepower figures. While Motive wanted to find out how the Dynolicious would do with 0-60 times, we were interested in how close it would come to wheel horsepower given both an estimated weight and drivetrain loss. That meant hitting up the Dynojet at Modacar and strapping our own Project Track Slut onto the rollers.