Basic controls (see bottom-right HUD):
   D = Drive: move forward/accelerate.
   B = Brake: slow down or stop; start braking early near stations (tap/hold as needed).
   R = Reverse: move backward.
   Watch the speed gauge and on-screen prompts; follow event guidance en route. Use the bottom-center to switch views (cab/interior). Extra buttons (lights, horn, armament) appear on the bottom-right—use as prompted.
“Rapid Bullet” (bullet-shaped icon, bottom-right):
   What it does: a consumable speed-boost for driving. Tap to consume one and trigger a short burst.
   Notes: duration/cooldown/stacking follow the in-game item tooltip. Rapid Bullet doesn’t replace Brake (B) or Reverse (R). Sources/carry limits depend on your version’s item/shop/event notes.