[ashtonkem]

And remember that you have to bleed most of that speed off before entering orbit. Even with aerobraking most orbiters try to slow down to ~2km/s before hitting the atmosphere. Hitting the Martian atmosphere at 32miles per second wouldn't be an acceptable plan in KSP, let alone in real life.

[skunkworker]

If this existed I would expect it would do something similar to The Expanse where they "flip and burn" to slow down coming towards the target. On the plus side, your craft could have decent "gravity" for most of the whole trip.