Ferrari's Felipe Massa was the fastest of twenty drivers, on the final day of testing at Monza.

The Brazilian was once again joined by Michael Schumacher as Ferrari continued with the programme initiated on Tuesday, which centred mainly on development of Bridgestone tyres and preparation for the Italian Grand Prix.

Massa's best time, over 0.8s faster than the second quickest driver (Alonso), is clear proff that the Italian team, and tyre partner Bridgestone, has adapted to the resurfacing work at the Autodromo Nazionale, and sets up a real thriller next weekend.

Ferrari will be back on track next Tuesday at Fiorano, when Luca Badoer will carry out the shake down of the cars that will be used in the Italian Grand Prix.

Fernando Alonso and Heikki Kovalainen ran a total 228 laps for Renault, focusing above all on tyre selection with Michelin. The Spaniard finished the day second on the timesheets, with a lap of 1:21.902. He initially worked on short runs before moving on to longer distance work in the afternoon.

Kovalainen also ran a busy tyre programme. Like his team-mate, he was comparing Michelin's latest development tyres for performance and consistency. He finished the day eleventh with a lap of 1:22.579.

"This was a good way to round off a busy week," said Christian Silk, "with lots of laps and plenty of new knowledge about the tyres. We have a good starting point from which to approach next week's Grand Prix, I think. This was an important and demanding test for the team, and every member worked to their maximum until the early hours each day. But that just goes to show how motivated we are to defend our championship lead!"

Christian Klien was third quickest for Red Bull, which also had David Coulthard on duty. Over the course of the past two days the drivers ran different tyre programmes; one working on compounds, the other on construction.

"Generally, the test went well with David getting through his full programme on the first day, when Christian lost a bit of time going off the track and with a gearbox problem," said Chief Test Engineer, Ian Morgan. "Today, Christian was again slightly delayed, this time by a brake problem in the morning and he also had a very minor 'off' right at the end of the day. The engine ran faultlessly throughout and we are happy with the tyre choices we have made for next weekend."

WilliamsF1 had its 2007 race drivers on duty, Nico Rosberg and Alexander Wurz. The German finished fifth quickest.

"Alex concentrated on comprehensive tyre tests, which took up the bulk of today's running," said test team manager, Mike Condliffe, "although there were some new mechanical parts being tested for reliability at the same time. Nico completed work on the specific aero package we will run next week as well as some smaller aero parts before finishing the remainder of our tyre tests ahead of the race."

Following his accident in Istanbul. Kimi Raikkonen has opted to sit out this week's test, which means that Gary Paffett partnered Pedro de la Rosa.

"Monza is the only circuit that we test on so close to the actual race," said Martin Whitmarsh, "and as a result the programme this week has been very much focused on the Italian Grand Prix. The track has been resurfaced since we were last here so we have been concentrating particularly on tyre evaluation with Michelin.

"Alongside this we have been working on the race set-up of both cars with Pedro and Gary, who have both been working on the aerodynamic package for this race. Gary's engine was at the end of its lifecycle and as a result failed this afternoon. However the mechanics did a fantastic job of changing it in a very short period of time, so that he could go back out towards the end of the session.

"We have achieved some positive results with both Gary and Pedro, and we go into the race next weekend with a greater understanding of what to expect from the circuit."

Ralf Schumacher and third driver Ricardo Zonta were on hand today for Toyota, to finish tyre testing and set-up work. However, the German finished at lunchtime due to not feeling well.

Zonta continued on testing different set-ups on both cars in the afternoon and collected the final data the team needed to make the final tyre choice.

"This week we had planned to carry out an important tyre test and try out some new aerodynamic parts in preparation for next week's race," said test team manager, Gerd Pfeiffer. "We've managed to finish most of the programme, even though we had to deal with loosing time from red flags, set-up work and then losing a half day of driving this afternoon.