Alcobendas to Segovia train with Renfe Avant

Renfe AVANT is a high-speed, medium-distance passenger rail service operated by Renfe, Spain's national railway company. These trains provide comfortable and efficient travel on shorter routes, typically less than two hours, connecting different provinces within the same or neighboring autonomous communities. AVANT services operate on high-speed lines, reaching speeds of up to 250 km/h, though some sources mention speeds up to 300 km/h. AVANT trains, such as the series 104, 114, and 121, generally offer a single class configuration (Standard Class or Turista) with air-conditioned comfort. While they may lack some features of longer-distance AVE trains, like a full restaurant car, many have vending machines for snacks and drinks, and some AV City branded services include a cafeteria. Popular routes include Madrid to Toledo, Barcelona to Girona, and Seville to Cordoba.

SNCF OUIGO is a low-cost train service launched in 2013 by SNCF, the French national railway company. It offers budget-friendly travel on both high-speed (Ouigo Grande Vitesse) and conventional (Ouigo Vitesse Classique) lines in France, and also to Belgium and Spain. OUIGO trains are characterized by a "no-frills" approach, featuring a single class of seating and minimal onboard amenities to keep ticket prices low. While the high-speed services utilize specially reconfigured TGV trains, Ouigo Vitesse Classique uses older locomotive-hauled rolling stock for even cheaper fares on slower routes.