Initial trials are being conducted at a specialized facility in Corella, Navarra, to validate the rolling stock before its arrival in the capital. This project, backed by an investment of 531.2 million euros, aims to transform Line 6, the busiest route in the network, which handles over 400,000 daily trips.

The first units are expected to arrive in Madrid starting in July to continue integration testing within the local network. Subsequently, the trains will undergo night-time trials on lines 10, 11, and 12 before being deployed on Line 6 once the necessary technological adaptations are completed.

Automation will allow for a reduction in headway to two minutes and increase top speeds to 110 kilometers per hour. By removing the driver's cabin, the trains will provide 17% more space, accommodating 1,385 passengers per unit while incorporating improvements in accessibility, energy efficiency, and passenger information systems.