new_contents: """
  Checks for suitability for in-car displays (ISO 15008).
  """
  
  from fontbakery.callable import check
  from fontbakery.section import Section
  from fontbakery.status import PASS, FAIL, WARN
  from fontbakery.fonts_profile import profile_factory
  from fontbakery.message import Message
  from fontTools.pens.boundsPen import BoundsPen
  
  
  profile = profile_factory(default_section=Section("Suitability for In-Car Display"))
  
  DISCLAIMER = """
          (Note that PASSing this check does not guarantee compliance with ISO 15008.)
  """
  
  CHECKS = ["com.google.fonts/check/iso15008_proportions"]
  
  
  @check(
      id="com.google.fonts/check/iso15008_proportions",
      rationale="""
          According to ISO 15008, fonts used for in-car displays should not be too narrow or too wide.
          To ensure legibility of this font on in-car information systems, it is recommended that the ratio of H width to H height is between 0.65 and 0.80."""
      + DISCLAIMER,
  )
  def com_google_fonts_check_iso15008_proportions(ttFont):
      """Check if 0.65 => (H width / H height) => 0.80"""
      glyphset = ttFont.getGlyphSet()
      if "H" not in glyphset:
          yield FAIL, Message(
              "glyph-not-present",
              "There was no 'H' glyph in the font, so the proportions could not be tested",
          )
  
      h_glyph = glyphset["H"]
      pen = BoundsPen(glyphset)
      h_glyph._glyph.draw(pen, ttFont.get("glyf"))
      (xMin, yMin, xMax, yMax) = pen.bounds
      proportion = (xMax - xMin) / (yMax - yMin)
      if 0.65 <= proportion <= 0.80:
          yield PASS, "the letter H is not too narrow or too wide"
      else:
          yield FAIL, Message(
              "invalid-proportion",
              f"The proportion of H width to H height ({proportion})"
              f"does not conform to the expected range of 0.65-0.80",
          )
  
  
  profile.auto_register(globals())
  
  
  profile.test_expected_checks(CHECKS, exclusive=True)
  
subject: Add new ISO15008 profile and proportion check