Ultimate Racing 2D update for September 2, 2019

Event mode can now be played in 2 ways:
-Mode 1: buy cars with the coins you earn (like the old career mode).
-Mode 2: use a fixed car.
Some cars are cheaper in coin mode.
Oval cars have higher top speed (Formula Speedway, Stock Car and Speedway Truck).
Tyre improvements:
-AI's tyres last less long and AI goes to pit earlier.
-Tyre bar gives better representation of the tyre state.
-Soft/Hard tyres have more grip at low wet level, and wet tyres have more grip and speed at dry track.
-Track gets wet/dry less fast.
10% rain option added.
AI makes better use of its power boost.
*Bugs fixed.