Germany\'s top airline Lufthansa confirmed an order for 30 of European plane maker Airbus\'s new fuel-efficient A320neo airliner for $2.8 billion (1.93 billion euros), the manufacturer said on Wednesday. Lufthansa announced the order in March, along with an order for five Boeing 777s, adding up to a total of $4 billion at list prices, as part of an ongoing \"modernisation and expansion\" scheme. Airbus says the Neo, a popular medium-haul workhorse, burns 15 percent less fuel than the standard A320 -- a crucial factor for airlines at a time of high oil prices. It said the Lufthansa delivery was due in October 2015