Blueprint

Blueprints are a game element introduced in Asphalt Streetstorm and brought over to Asphalt 8: Airborne. It gives the option of obtaining cars without directly purchasing it.

Asphalt Streetstorm
Blueprints are only obtainable through Gift Boxes with each box type having its own pool of car blueprints.

Asphalt 8: Airborne
Introduced in the Spring 2017 Update, blueprints are now also available for Pro Kit engine cards in addition to cars. A maximum of 3 blueprints are purchasable at any time from Exclusive Deals or 10 from the Expert Construction Box.