Concorde allow for "luxury" features of subsonic air travel such as moving space, reclining seats and overall comfort. In the words of "The Guardian"'s Dave Hall, "Concorde was an outdated notion of prestige that left sheer speed the only luxury of supersonic travel." Air France made its final commercial Concorde landing in the United States in New York City from Paris on 30 May 2003. Air France's final Concorde flight took place on 27 June 2003 when F-BVFC retired to Toulouse. An auction of Concorde parts and memorabilia for Air France was held at Christie's in Paris on 15 November 2003;
Concorde quoted as saying, "It is certain on present evidence and calculations that in the airport context, production Concordes will be no worse than aircraft now in service and will in fact be better than many of them." Concorde produced nitrogen oxides in its exhaust, which, despite complicated interactions with other ozone-depleting chemicals, are understood to result in degradation to the ozone layer at the stratospheric altitudes it cruised. It has been pointed out that other, lower-flying, airliners produce ozone during their flights in the troposphere, but vertical transit of gases between the layers is restricted. The small fleet meant overall