#include <Servo.h>

int engine = 9;
int engineSpeed = 0;
int engineSpeedTarget = 0;

Servo steeringWheel;

void setup() {
  steeringWheel.attach(2);
  steeringWheel.write(67);
}

void loop() {
  if (engineSpeed == engineSpeedTarget) {
    engineSpeedTarget = random(50, 100);
    steeringWheel.write(random(56, 78));
    analogWrite(13, 255);
    delay(50);
    analogWrite(13, 0);
  }
  if (engineSpeed < engineSpeedTarget) {
    engineSpeed ++;
  }
  if (engineSpeed > engineSpeedTarget) {
    engineSpeed --;
  }
  analogWrite(engine, engineSpeed);
  delay(10);
}