switch (FEAT_ROADVEHS, SELF, switch_e0,
  position_in_consist > 0 ? 16 : 0) + getbits(random_bits, 4, 1) * 4 + getbits(extra_callback_info1, 8, 8)
) {
 0: spriteset_e0_front_style0_stack0;
 1: spriteset_e0_front_style0_stack1;
 4: spriteset_e0_front_style1_stack0;
 5: spriteset_e0_front_style1_stack1;
16: spriteset_e0_middle_style0_stack0;
17: spriteset_e0_middle_style0_stack1;
20: spriteset_e0_middle_style1_stack0;
21: spriteset_e0_middle_style1_stack1;
}

// 1CC+2CC
switch (FEAT_ROADVEHS, SELF, switch_e0_color0,
  STORE_TEMP((getbits(extra_callback_info1, 8, 8) < 1 ? CB_FLAG_MORE_SPRITES : 0) | PALETTE_USE_DEFAULT, 0x100)
) {
  default: switch_e0;
}
// 1CC only
switch (FEAT_ROADVEHS, SELF, switch_e0_color1,
  STORE_TEMP((getbits(extra_callback_info1, 8, 8) < 1 ? CB_FLAG_MORE_SPRITES : 0) | PALETTE_CC_FIRST + company_colour1, 0x100)
) {
  default: switch_e0;
}
// 2CC only
switch (FEAT_ROADVEHS, SELF, switch_e0_color2,
  STORE_TEMP((getbits(extra_callback_info1, 8, 8) < 1 ? CB_FLAG_MORE_SPRITES : 0) | PALETTE_CC_FIRST + company_colour2, 0x100)
) {
  default: switch_e0;
}
// grey
switch (FEAT_ROADVEHS, SELF, switch_e0_color2,
  STORE_TEMP((getbits(extra_callback_info1, 8, 8) < 1 ? CB_FLAG_MORE_SPRITES : 0) | PALETTE_CC_FIRST + COLOUR_GREY, 0x100)
) {
  default: switch_e0;
}

switch (FEAT_ROADVEHS, SELF, switch_spriteset_e0_tram,
  getbits(random_bits, 4, 2)
) {
 0: switch_e0_color0;
 1: switch_e0_color1;
 2: switch_e0_color2;
 3: switch_e0_color3;
}