Well, useless if you don't own GTA IV and love destroying vehicles and property.
The point of this is to show you how to grab a car and get it ready for a graceful ballet on the streets of liberty city.
Credit goes to Wes9000 for showing us what fun could be had in our cars.
Step 1: Get Your Skates!
Normal people would do this through a dealership or private seller, but Niko has other plans.
This process is both simple and extremely entertaining.
Notice we've used the Finesse style of carjacking (skate acquisition) here and simply asked for the vehicle.
Some other methods are messier.
Step 2: Enabling Skate Mode
You must know if you're riding on sick dubs or if your rims are significantly more common.
Then simply remove the rubber coating from your skates and move onto step three.
Step 3: The ART of Skating
As your conveyance applies torque to the skates the now lowered coefficient of friction will create certain issues not normally seen while the vehicle is in motion with the Skate Covers in place.
As you can see here, the effect is somewhat dramatic and often very graceful.
As you continue you will find that proper music and application of throttle will help provide you and spectators with a more fulfilling experience.
Step 4: RUN Like Hell
In these cases the prescribed action is to RUN LIKE HELL...
of course shooting at them also works.
In this case the critics of the performance were overly aggressive.
Step 5: The Grand Finale
This climax may even require you to make the ultimate sacrifice in order to make it as breathtaking as possible, but remember... as an artist, you are required by the universe to take yourself so seriously that these things become possible for you.