Space X Mars Express
Liam keating linear fusion

Space X Mars shuttle braking into a Mars parking orbit.
Powered by a Linear Fusion Gasdynamic Mirror Engine it's able to complete a 170 day round trip between Earth and Mars on a standard Brachistochrone trajectory (accelerating to 50% distance then flipping around and decelerating for the remaining 50%).
This specific ship has been contracted by the Chinese government to transport workers for the Mars Elevator construction programme. It will be met in Mars orbit by a fleet of small shuttles to re-supply and perform basic maintenance before the trip back to Earth.