The Fantasti-Car, a flying car, is an invention of Reed Richards and is used by his family and teammates, the Fantastic Four. The Fantasti-Car also appears in the 2007 film Fantastic Four: Rise of the Silver Surfer, and the various Fantastic Four animated series.
Reed continually reinvents the car, which originally resembled a "flying bathtub". In its typical design, it has a modular structure, enabling it to separate into four vehicles.
In Ultimate Marvel continuity, the Fantasti-Car was a fuel-less vehicle invented by Reed in case he wished to escape from the Baxter Building. It was replaced by a modular vehicle called the "Seven Ten Split" (although Ben Grimm, who found the name Fantasti-Car amusing, suggested calling it the "Wonder Bus").
Read more about this topic: List Of Vehicles In Marvel Comics