The Crew Dragon Capsule is not expected to be involved in any mars trips. They will use the very large Starship vehicle to travel to and from Mars and it will l

The Crew Dragon Capsule is not expected to be involved in any mars trips. They will use the very large Starship vehicle to travel to and from Mars and it will land with rockets. However I’m not sure what you mean by inefficient here. Parachutes work great on Earth for vehicles of a certain size.