Carlos Sainz had maintained his lead in the Dakar Rally after taking his second stage win in the event, edging out Nasser Al-Attiyah on the run from Jacobacci to Neuquen.

Sainz, who has led the event since stage two, completed the stage in three hours, 42 mins and 57secs which proved to be just six seconds quicker than double stage winner Al-Attiyah. However, as was the case for Al-Attiyah yesterday, Sainz saw what could have been a larger winning margin hit by a puncture late in the stage which cost the Spaniard time.

He will now take a lead of three minutes and 46 seconds into the fifth stage.

After his problems on Monday, when he suffered a fuel leak on his Racing Lancer, Mitsubishi's Luc Alphand was third fastest through the stage, with the Frenchman climbing two places in the overall standings to eighth place.

Mark Miller, Nani Roma and Giniel de Villiers rounded out the top six and remain in the top six overall, along with Stephane Peterhansel who was eighth quickest through the stage - losing nearly seven more minutes to a leader he admitted was simply 'too fast' through the opening legs of the event.

Argentina-Chile Dakar 2009 - Positions on SS4:

1. Carlos Sainz Volkswagen Touareg 03hrs 42m 57s
2. Nasser Al-Attiyah BMW X3 CC +0hrs 00m 06s
3. Luc Alphand Mitsubishi Racing Lancer +0hrs 02m 24s
4. Mark Miller Volkswagen Touareg +0hrs 04m 20s
5. Nani Roma Mitsubishi Racing Lancer +0hrs 05m 38s
6. Giniel de Villiers Volkswagen Touareg +0hrs 05m 48s

Argentina-Chile Dakar 2009 - Positions after SS4:

1. Carlos Sainz Volkswagen Touareg 12hrs 47m 45s
2. Nasser Al-Attiyah BMW X3 CC +0hrs 03m 46s
3. Giniel de Villiers Volkswagen Touareg +0hrs 11m 33s
4. Stephane Peterhansel Mitsubishi Racing Lancer +0hrs 15m 41s
5. Nani Roma Mitsubishi Racing Lancer +0hrs 20m 00s
6. Mark Miller Volkswagen Touareg +0hrs 20m 05s