Now sure how to "steal" cars, but when I press V to call a vehicle it eventually says "Vehicle unavailable - stay on foot". But what did available was a glider

Now sure how to "steal" cars, but when I press V to call a vehicle it eventually says "Vehicle unavailable - stay on foot". But what did available was a glider, so I guess my only form of faster transportation in the city is to glide to anywhere I want :)