Race organisers in Malaysia are getting used to the milder tones of today's F1.
A year ago, Sepang was counted among scores of F1 circuit chiefs who joined Bernie Ecclestone in railing against the loss of the sport's iconic screams of normally-aspirated power.
Boss Razlan Razali told Reuters that when he first heard the turbo V6 power units in 2014, "I didn't like it".
"It was simply too quiet but what I noticed in the grandstands is that you get families with kids watching and enjoying F1 more.
"I think it attracts a new fan base now. And that's what you want," he added.