SARS was a coronavirus. We know the name SARS because it caused a disproportionate amount of severe illness and death. The current coronavirus that is causing all of the deaths around the world and quarantines is COVID-19. There likely are other coronaviruses floating around concurrently not causing severe illness.
Similar to flu (influenza virus) we usually don’t bother knowing the name of a flu unless it is especially deadly, or causing a lot of severe illness. People are familiar with H1N1, because of the scare it caused several years ago. H1N1 was floating around a lot this year, but we didn’t hear much about it, instead it was grouped in with other flus. We also are familiar with Spanish flu, because it was so deadly.