Lewis Hamilton and Charles Leclerc lap times leaked as Ferrari test 'major upgrade' at Monza

Lewis Hamilton and Charles Leclerc have been testing out Ferrari's new upgrades in Monza, and the lap times have emerged online.

Following a unexpected five week break caused by the cancellations of the Bahrain and Saudi Arabian Grands Prix, Formula One will finally return next week for the Miami Grand Prix.

Given the extended time away from the track, it is expected that most of the teams will have applied new upgrades to their cars ahead of the race at the Miami International Autodrome.

Chief among the teams expected to have significantly changed their package in Miami is Ferrari, with several upgrades added to the car for the fourth race of the 2026 season.

However, ahead of bringing he upgrades to an actual race weekend, Ferrari has been testing them during a day on their home track, the Autodromo Nazionale Monza.

As reported by Autoracer, the Ferrari completed the 200 km at Monza with both Hamilton and Leclerc completing laps on the Monza track.

In total, Leclerc completed 19 laps with a fastest time of 1:27.138 meanwhile Hamilton put in a faster time of 1:26.585 after completing 15 laps testing the new upgrades.

Comparatively, Max Verstappen's pole lap time at Monza last year was 1:18.792, nearly eight seconds faster than Hamilton's lap during the test.

Meanwhile Leclerc qualified in fourth with a 1:19.007 time with Hamilton just one place behind him with a 1:19.124 lap.

Of course, race times from last year will have been achieved with different tyre setups and lower fuel than Ferrari's test laps.

What upgrades will Ferrari bring to the Miami Grand Prix?

Ferrari had initially planned to introduce a series of upgrades over the weeks following the third race of the season in Japan, but the cancellation of the following two races has changed things.

Instead, Ferrari will introduce all of their upgrades to the car in Miami, with the testing session in Monza confirming that the team were happy with how the new upgrades performed.

The first will see the return of the controversial 'Macarena' rear wing seen during practice in China, which sees the wing pivots and rotates when the driver applies active aerodynamics.

Team principal Fred Vasseur confirmed after China that the design needed more mileage before being implemented permanently, but the team is now happy to bring it to Miami.

Another upgrade set to return following a trial run in China will see new fin elements at the base of the halo, designed clean up airflow around the cockpit and redirect it towards the engine intake and rear bodywork.

The design will reportedly deliver a small aerodynamic gain, especially at high speed.

No updates on the power unit side but a new front wing and fully updated floor are expected in Miami.