The 2023 Mercedes-Benz C-Class, a midsize luxury car, earns a Top Safety Pick+ award when equipped with an optional front crash prevention system. The requirements are tougher for both the lower-tier Top Safety Pick and higher-tier Top Safety Pick+ award in 2023. Acceptable or good headlights are now required across all trims for either award, rather than only for the higher accolade. In addition, the updated side test, in which a heavier striking barrier hits the test vehicle at a highe...