The Finn moved up into P1 in Sweden, thanks to his second runners-up spot in succession and he now heads
Sebastien Loeb by 6 points, with two of the 15 events done and dusted.
Although it is still early days, the 27-year-old was happy to go top, as it is the first time he has ever held the position and now he will want to try and hang on to it, even if he will start at a disadvantage.
"I will attack as hard as I can from the start in Mexico. First on the road isn't the best place to be because there will be loose gravel and stones on the road surface," said the 27-year-old. "It's better to be further down the order where the roads will be cleaner but I don't mind putting up with that if it means I lead the championship.
"I really don't want to start first on Saturday or Sunday though, and it will be interesting to see if tactics come into play at the end of the first day as drivers try to obtain a better start position for the rest of the weekend."
Jari-Matti Latvala meanwhile has said he will be after a top-three finish. The Finn took his maiden victory in the WRC earlier this month and in the process became the youngest winner in the history of the sport.
The 22-year-old was in a class of his own and he eventually won the Swedish Rally by nearly a minute.
He isn’t getting carried away however and he knows that Mexico will be a tougher nut to crack. Indeed Jari has only competed in Mexico twice to date, finishing seventh overall last year and ninth in the PWRC in 2006.
"I don't have as much experience in Mexico compared to some other rounds and I need to be a bit calmer than in Sweden," he explained. "In the recce the Mexican roads are in a good condition but it's surprising how many big impacts the cars can take during the rally itself.
"Where the water flows down from the mountains and crosses the roads, the concrete crossings can be deep and after a fast section the car can take quite a hard impact there.
