Life car

A life car is a projected to save people who about to drown or land-drown. It is not a hovercar, but instead. Much like the hovercar, however, its inventor is unknown. This type of machine was used in the year 2912, when the Land Titanic disaster took place. It's unknown whether it's still popular in the 31st century or has been abolished for some reason.

Trivia

 * The concept of life cars comes from the of our time, namely the ones that rescued the  drowning survivors.