Pagani’s new supercar (the one with the unpronounceable name) has hit a safety speed-bump in the US that hasjeopardised its hopes of being enjoyed on that country’s roads. The problem flagged on the new Huayra by the US’s National Highway Traffic Safety Administration (NHTSA) concerns the air bags supplied as standard on the Mercedes-powered, six-litre, V12 supercar. Bloomberg reports the automaker submitted a request to have its airr bags waived. US safety regulations reportedly require that bags deploy based on the seat occupants’ height and weight. NO 'ECONOMIC HARDSHIP'Pagani cited the cost of developing the additional bag technology as prohibitive since it reportedly expects to sell only five of its 552kW Huayras in the US but the US safety moguls were adamant. The NHTSA said: “The agency has determined that Pagani has failed to demonstrate that compliance (with the air-bag regulations) would cause substantial economic hardship.”Which means Pagani’s basically been ordered to conform to the standard or sell its five additional cars elsewhere.Ouch.