MELBOURNE, March 6 : Oscar Piastri delighted home fans by putting McLaren top of the timesheets in the second free practice for the Australian Grand Prix on Friday as struggling Aston Martin had a minor win by nursing both cars through laps. Hometown hero Piastri lapped Albert Park in one minute, 19.729 seconds on a sunny afternoon, 0.214 seconds ahead of Mercedes drivers Kimi Antonelli and George Russell. Piastri ran sixth quickest with a compromised run plan in the first practice (FP1)