Crew Dragon is being developed in 2013.
SpaceX founder Elon Musk has unveiled the final design of the manned spacecraft. Crew Dragon is to deliver crews to the International Space Station.  Photo-crew Dragon Musk on his Twitter page
"The ship Crew Dragon sent in a soundproof chamber for testing the influence of electromagnetic interference in front of the vacuum chamber of NASA," said Musk in the caption in the photo. 1
In 2024, SpaceX used Crew Dragon to send expeditions to Mars ,
It is believed that the ship can carry up to seven crew members or four persons and cargo. The SpaceX plan envisages that Crew Dragon can return to Earth and be reused.
The only way to transport crews to the ISS is currently the Russian spacecraft Soyuz.