Last year's winner Lewis Hamilton put Mercedes on top of the Italian Grand Prix practice times on Friday with Fernando Alonso keeping the Ferrari fans happy with the second-best lap only 0.035 seconds slower.
Red Bull's championship leader Sebastian Vettel was fourth fastest.
Hamilton, who will be chasing his fifth consecutive pole position on Saturday, roared around Monza's classic 'Pista Magica' with a best time of one minute 25.565 seconds on a sunny morning in the former royal park.
The Briton, who was booed by some of the passionate Ferrari 'tifosi' when he won for McLaren last year, had said on Thursday that he hoped they would be booing him again if it meant a return to the top step of the podium on Sunday.
IN WITH A CHANCE
The 2008 world champion certainly has a good chance, as one of only three current drivers to have won the final round of the European season and with Mercedes looking increasingly competitive.
Vettel and Alonso, the top two in the championship after 11 of 19 races, are the other two past winners with the German triple champion 46 points clear of the Ferrari driver.
Alonso might have gone quicker than Hamilton had he not run wide, kicking up a cloud of dust, at the exit to the Parabolica corner on a fast lap with half an hour to go.
Hamilton's team mate Nico Rosberg was third fastest while former Ferrari driver Kimi Raikkonen, the 2007 champion now with Lotus, was fifth on the timesheets.
Raikkonen suffered his first retirement of the season, ending a 27-race scoring run, at the previous race in Belgium and has fallen back to fourth in the championship behind Hamilton.
A banner in the start/finish grandstand, written in large red letters and positioned next to a Ferrari flag, declared 'Kimi in pole' in what looked like a throwback to 2007 when the Finn finished third at Monza for the Italian team.
Raikkonen has a longer-wheelbase car for the race, the fastest on the calendar with speeds of as much as 340km/h, but has played down his chances.
“It will be very difficult.”
“The low-downforce circuits are probably not the strongest for us, he said. ”Last year was difficult, and last year at Spa was quite tricky, and it wasn't easy this year either.”
McLaren was sixth and seventh fastest with Sergio Perez and Jenson Button, who had a DRS problem with his car’s rear wing, while Mark Webber was eighth for Red Bull in what will be his final Formula One appearance in Europe.
His 2014 replacement, fellow Australian Daniel Ricciardo, was 13th.
Ferrari's Felipe Massa, whose race seat is once again in the spotlight with endless speculation about who might replace the Brazilian next year, was a disappointing 14th.
Britain's James Calado made his debut at a Grand Prix weekend, the newly-appointed Force India third driver taking over Adrian Sutil's car for the morning session before the German returned after lunch.
He did 24 laps and was 17th fastest.
Caterham and Marussia also ran their reserve drivers, Heikki Kovalainen and Rodolfo Gonzalez respectively. - Reuters
1 Lewis Hamilton (Britain) Mercedes - 1min25.565
2 Fernando Alonso (Spain) Ferrari - 1min25.600
3 Nico Rosberg (Germany) Mercedes - 1min25.704
4 Sebastian Vettel (Germany) - Red Bull 1min25.753
5 Kimi Raikkonen (Finland) Lotus - 1min25.941
6 Sergio Perez (Mexico) McLaren - 1min26.007
7 Jenson Button (Britian) McLaren - 1min26.035
8 Mark Webber (Australia) Red Bull - 1min26.103
9 Pastor Maldonado (Venezuela) Williams - 1min26.149
10 Jean-Eric Vergne (France) Toro Rosso - 1min26.155
11 Esteban Gutierrez (Mexico) Sauber - 1min26.194
12 Romain Grosjean (France) Lotus - 1min26.295
13 Daniel Ricciardo (Australia) Toro Rosso - 1min26.387
14 Felipe Massa (Brazil) Ferrari - 1min26.449
15 Paul di Resta (Britain) Force India - 1min26.594
16 Valtteri Bottas (Finland) Williams - 1min26.802
18 Nico Hulkenberg (Germany) Sauber - 1min27.224
19 Charles Pic (France) Caterham - 1min27.818
20 Max Chilton (Britain) Marussia - 1min27.869
21 Heikki Kovalainen (Finland) Caterham - 1min28.192
22 Rodolfo González (Venezuela) Marussia - 1min29.526