Slovakia-based AeroMobil claims that its two-seat 4.0 model STOL personal aerial vehicle will be ready to enter commercial service in 2021, powered by a conventional gas engine. AeroMobil also is working on an electrically powered vehicle that would have VTOL capability and be suitable for air taxi operations. It hopes to have built a full-scale prototype of the four-seat 5.0 model by 2025.
In early September 2019, AeroMobil revealed plans for a new 6.0 model that it says will be its first true eVTOL aircraft, built solely for flight operations. It classes the 4.0 and 5.0 as "flying cars." The company indicated that it intends to present a scaled model of the new design "within a few months," suggesting that it could be unveiled by late 2019. The planned performance specifications for the 6.0 do not appear to have been fully defined. The company says it is trying to determine what range and payload to focus on out of the following three bands: 30 km (1 to 2 passengers), 30- to 70 km (2 passengers) and 70 km (four passengers).
In June 2019, AeroMobil's engineering team achieved a ground test run with the Prodrive 2-liter, 4-cylinder engine that will power the 4.0. The first prototype fitted with this engine was supposed to make a first flight before the end of 2019 and, as of mid-August 2019, the company's engineering team was assembling the wing. The engine generates 300 hp to run a 2400-rpm direct-drive propeller. However, as of late January 2020, there had been no confirmation that a first flight with the 4.0 had been achieved.
AeroMobil filed a type certification application with the European Union Aviation Safety Agency in December 2018. The 4.0 is due to be certified under EASA's CS23 regulations and separately as an M1 category road vehicle.
The larger 5.0 model was still at the concept stage as of August 2019, with one early version of the aircraft built so far and being used to assess various possible configurations for the series production model. It is expected to be powered by a 100-hp Rotax 912 piston aircraft engine.
In July 2019, AeroMobil announced that private investor Omid Vaziri had joined an existing group of backers to take the total amount raised for the company to around $27 million.
In September 2019, the company also reported that it is working with unnamed "leading" automobile manufacturers to develop cabin interiors for its flying cars and eVTOL aircraft. It argued that customer acceptance will not be high if the level of cabin comfort is little better than that available in existing light aircraft.