Visualize your speed design as the Delorean DMC speedometer
Put the sound on and go up to 88 miles per hour and see what's happen.

Put your seat belt, start your time machine's flux capacitor, have a straight line and keep an eye on your speedometer

Don't forget to put your sound on!

The speed displayed in the app is your real speed.

Double tap on the speed to switch between MPH and KMH, and vice versa.

Be ready Marty, Doc is with you.

Drive safely and obey the speed limit