DGT environmental label
In Spanish contracts: Distintivo ambiental DGT
The sticker issued by Spain's traffic authority that classifies a car's emissions as 0, ECO, C or B and governs access to low-emission zones. Plug-in and mild hybrids meeting the criteria receive ECO; Euro 6 petrol supercars usually receive C.
Example
A Ferrari 296 GTB is ECO, a Lamborghini Huracán is C, a 911 Turbo S T-Hybrid is ECO.