Volvo vehicles are known for their safety features, including the three-point seatbelt invented by the Swedish manufacturer in 1959. In addition to safety, Volvo also pays attention to detail in design, including the unique indicator sound in their cars. The distinctive noise was created by recording the sound of a breaking branch from a Swedish oak in a forest, rather than using synthetic beeps like other manufacturers. This attention to detail and unique approach to design has garnered praise from some motorists, while others prefer the more traditional plastic clicks and beeps for turn signals.