George Russell (Mercedes) set the fastest time in the inaugural Formula 1 practice session at the new Madring circuit in Madrid, posting a 1:34.077. His teammate Kimi Antonelli was second, just 0.286 seconds behind, confirming Mercedes' early pace on the soft tyres .
Drivers immediately flagged the difficulty of overtaking on the 5.5 km street circuit, which features only two short straights and constant bends. The layout caused persistent traffic; at one point Racing Bulls driver Lindblad exclaimed over the radio about two slow cars, 'Son estúpidos' . Max Verstappen warned that 'a small mistake can lead to an accident' . Despite concerns, the session ran without major incidents, though a Formula 2 car caught fire earlier in the day .
Local heroes Fernando Alonso (Aston Martin) and Carlos Sainz (Williams) ended 15th and 17th respectively, 2.4 and 2.8 seconds off the pace. Alonso escaped a moment at the Búnker section . Sainz reported graining issues and complained about traffic: 'Lewis always does the same' . Both appear unlikely to challenge for points on Sunday.
