The Brit involved in a road car accident earlier this week at Monaco and reached in Brazil a day later than original schedule, Hamilton showed few signs of rustiness as he easily gapped the field.
Mercedes was testing some aerodynamic tweaks on its dominant machine especially S-Duct, and resulted Hamilton was 0.519s clear of Rosberg by the end of the session, it’s a huge gap over such a short circuit.
Sebastian Vettel was third fastest and 0.625s off Hamilton’s pace, while Red Bull’s Daniel Ricciardo, who is running the new-specification Renault engine, and Kimi Raikkonen completing the top five.
Kimi had a big spin in the final part of the session following lost control at Turn 4 and jump his way through the stony-gravel, fortunately his Ferrari not damaged seriously.
The local heroes didn’t impressed their home crowd: Williams’ Felipe Massa was 17th, behind Sauber’s Felipe Nasr, 14th.
Rosberg beat Hamilton for top podium last year and is now coming off a victory in Mexico two weeks ago as he seeks to hold off Vettel for second place overall. Rosberg is 21 points ahead of the fellow-German with two races left and will clinch the runner-up spot if he wins Sunday.
Hamilton has already clinched the 2015 title but he wants top podium in Sao Paulo on his ninth attempt.