# Tesla's Flying Roadster Demo Faces Skepticism Over Practicality Experts question the feasibility of SpaceX-powered thrusters in real-world driving conditions. - **Source:** [Latest from Live Science](https://www.livescience.com/feeds.xml) - **Published:** 2026-10-19 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/2417f337-b3cf-46f3-b027-1dbfe84656be ## Aerospace Tech Meets Automotive Tesla showcased a new Roadster variant capable of short-duration flight using cold-gas thrusters developed by SpaceX. During a demonstration at a Texas testing facility on October 15, the vehicle performed a barrel roll and jumped over parked cars. The system utilizes high-pressure gas bursts to generate the necessary thrust for airborne maneuvers. ## Three Distinct Model Variants The upcoming Roadster lineup includes Performance, Thrust, and Rocket models. The Performance version features a suction system for improved handling, while the Thrust model utilizes rear-mounted thrusters to achieve 0 to 60 mph in under one second. Only the single-seat Rocket model is equipped with the specialized hardware required for actual flight. ## Operational and Regulatory Hurdles Tesla explicitly stated the Rocket model is not approved for public roads and its availability remains subject to regional regulations. During the reveal, Elon Musk admitted the vehicle is not optimized for safety. The company has not disclosed specific metrics regarding the maximum duration or distance the vehicle can remain airborne during flight. ## Scientific Skepticism Regarding Feasibility AI scientist Yann LeCun criticized the demonstration as a marketing stunt, questioning its practical utility. He calculated that even if half the car's mass consisted of compressed air, it would provide less than ten seconds of useful thrust. LeCun suggested the vehicle is likely an empty, lightweight shell rather than a functional car. ## Comparison to Existing Competitors Alef Aeronautics, which is developing its own flying electric vehicles, responded to the announcement by highlighting its own progress. CEO Jim Dukhovny noted that Alef has logged over 1,000 flights using electric propellers for vertical takeoff. Unlike Tesla's compressed-gas approach, Alef utilizes a rotating cabin design to support sustained forward flight capabilities. ## Historical Production Delay Patterns Tesla has scheduled the Roadster for production by 2028, though the company frequently struggles with meeting stated deadlines. The Optimus humanoid robot, first unveiled in 2021, faced multiple delays after an initial 2023 production target. Only recently has the company managed to scale production of that specific unit to a few hundred per week. ## Technical Limitations of Thrusters The reliance on cold-gas thrusters creates significant engineering constraints for a road-legal vehicle. Because the system requires massive compressed air tanks, the internal architecture must prioritize storage over passenger space or safety features. This design trade-off makes the Rocket model a specialized demonstration piece rather than a viable consumer transportation solution. ## Future of Flying Vehicles While Tesla enters the race, the industry remains divided on the viability of hybrid road-air vehicles. With production targets set for 2028, the company faces intense scrutiny regarding whether this technology can transition from controlled stunts to safe, public use. The outcome will depend on overcoming both regulatory barriers and fundamental physics constraints. ## Sources covering this story - https://www.livescience.com/technology/electric-vehicles/cute-demo-but-totally-impractical-experts-are-skeptical-that-teslas-rocket-roadster-could-actually-work-in-the-real-world — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._