The reversed "AMBULANCE" lettering seen on the front of emergency vehicles is a deliberate safety feature, not a design error, designed to be easily readable by drivers through their rearview mirrors.

• This reversed text allows the word to appear correctly oriented and instantly legible in a mirror, reducing cognitive load on drivers.
• The practice is included in vehicle standards and guidelines globally due to its proven effectiveness in road safety.
• The mirrored text often works with retro-reflective vinyl, making the lettering stand out sharply in mirrors, especially at night or in poor weather.