International Airlines Group (IAG) has converted 20 of the 100 Airbus 320neo options, it announced in August 2013, into firm orders. These aircraft will be delivered in 2018 and 2019 and will provide both cost savings and environmental benefits. New technology and improved aerodynamics will lower fuel burn and CO2 emissions by 15%, as well as providing both noise and NOx performance advantages. Last year IAG announced that, as part of a Vueling order for up to 120 Airbus A320 family aircraft, it had also secured 100 A320neo options. The remaining options can be used for any of the airlines in the Group – British Airways, Iberia or Vueling – for aircraft replacement requirements. These aircraft are currently intended to replace 21 shorthaul British Airways’ aircraft but will be reallocated if the airline cannot make a profitable return from its shorthaul business.