This fan made Mario Kart 8 app is absolutely perfect

There are 179,712 different Mario Kart 8 vehicle combinations to choose from. Configure MK8 helps you select the best combination for your driving skills. No more scratching your head at the character/kart selection screens!

If that's not a good way to sell your app, then I don't know what is.

Configure MK8, available on the Google Play Store, allows players to tinker with various Mario Kart 8 customization options. What's the difference between doing this at the selection screen and the app? Well, for starters, you can use the app whenever you want and you're not pressed for time during the selection screen.

While people may often scoff at the idea of external apps for video games, some always find a way to prove their usefullness. Now if you'll excuse me, I'm going to download this app and find out what unlocks I should be gunning for to help dominate online play.

[Kotaku]