WRR is the sound of the throttle being pushed to the floor.

Start your car and take to the streets of eastern Europe! Feel the speed and danger, driving the car, rushing through the dense traffic flow. Show your driving skills by dodging unexpected obstacles and avoiding collisions with other road users.
Choose from a variety of cars and customize them to your style.
Feel the unique spirit of Eastern European car culture.
Dozens of cars are waiting for you in the game. The constantly updated range of cars will not leave indifferent even the most refined connoisseurs of cars!

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/