The Leopardo 2E or Leopard 2A6E (E stands for España (Spanish for 'Spain')) is a variant of the German Leopard 2 main battle tank (specifically the Leopard 2A6 variant), tailored to the requirements of the Spanish army, which acquired it as part of an armament modernization program named Programa Coraza, or Program Cuirass. The acquisition program for the Leopard 2E began in 1994, five years after the cancellation of the Lince tank program that culminated in an agreement to transfer 108 Leopard 2A4s to the Spanish army in 1998 and started the local production of the Leopard 2E in December 2002. Despite postponement of production owing to the 2003 merger between Santa Bárbara Sistemas and General Dynamics, and continued manufacturing issues between 2006 and 2007, 219 Leopard 2Es have been delivered to the Spanish army.

The Lince was a Spanish development programme for a proposed main battle tank that unfolded during the late 1980s and early 1990s. The intention was to replace the M47 and M48 Patton tanks that the Spanish Army had received under the U.S. Mutual Defense Assistance Act between 1954 and 1975, and to complement the AMX-30E tanks manufactured for the army during the 1970s. Companies from several nations, such as German Krauss-Maffei, Spanish Santa Bárbara, and French GIAT, made bids for the development contract. The main priorities were mobility and firepower, with secondary priority placed on protection; the Lince tank was to have been lighter and faster than its competitors. To achieve a sufficient level of firepower and protection, the Lince was to use Rheinmetall's 120 mm L/44 tank-gun and German composite armour from the Leopard 2A4.