Zoom Rossetti beat a highly competitive field in Portugal

Peugeot Italy driver Luca Rossetti has maintained his 100% success rate in the IRC by winning the Rally de Portugal. This marks Rossetti's fourth Intercontinental Rally Challenge victory (following on from Ypres and Sanremo in 2007, as well as Istanbul this year) from four participations and makes him the most successful driver on the short history of the IRC series so far.

Rossetti was in the thick of an intense fight for the lead with Peugeot Belgium driver Nicolas Vouilloz throughout most of the rally, ending Saturday with an advantage of just 2.4 seconds.

On Sunday morning, Vouilloz chose slightly softer tyres than Rossetti and started to drop behind – but it was a puncture, which he was forced to stop and change, that dropped him definitively out of contention for the win.

This meant that second place went to Belgian star Francois Duval, who climbed his way up the order despite the handicap of starting first on the road on Friday. However, the Belgian's challenge for the lead was halted by a wheel bearing failure on SS10.

Duval's retirement meant that Rossetti was able to safeguard his advantage over second-placed Jan Kopecky for the final three stages, who moves up to third place overall in the standings.

The 1994 World Rally Champion Didier Auriol held third, but he retired his Abarth Grande Punto on the following stage – SS11 – with suspension failure.

In the end it was Vouilloz who claimed third place, to consolidate his second place in the standings.

Fourth place was decided on the final stage, after an enormous battle between Giandomenico Basso's Abarth and Finn Juho Hanninen in a Mitsubishi. In the end, Basso claimed the advantage and opened his points-scoring account for the season.

There were several high-profile retirements, including Anton Alen – who was out on the first stage with a clutch problem on his Abarth – and Peugeot Belgium's Freddy Loix, who was out after picking up three punctures yesterday with only two spare wheels.

Marco Cavigioli won the IRC 2WD Cup in a Fiat Grande Punto diesel, lying 20th overall, to claim the joint lead of the series and re-inforce Fiat's lead of the manufacturers' rankings.

Rossetti, who now enjoys a six-point lead of the championship, commented: "It's been a fantastic battle from the beginning, and I'm overjoyed to win my fourth IRC rally. Just as was the case in Turkey at the start of the season, I really didn't expect this. To be competing against such a high-quality field of drivers, with even Marcus Gronholm as the zero car, was a very big honour for me and my co-driver."