Kimi Raikkonen says Ferrari is on track to meet its targets in preparation for next season despite recent results going awry and doesn't need to change its approach for 2016.

The former F1 World Champion believes the team has made vast improvements since he re-joined the Maranello-based squad in 2014 and has paid huge credit to the work the team has achieved both on track and at its factory.

Even though Ferrari has lost out to Mercedes in both the Constructors' and Drivers' championships once again this year, Raikkonen is optimistic for next season as he looks to generate momentum over the final three races, starting this weekend at the Mexican Grand Prix, to carry into the winter period.

"I think we've gone forward in many areas, even if the results in the last two races were pretty bad," Raikkonen said. "I think we know where we are and have to do a better job with no mistakes. I don't think we need to do anything different from what we've been doing so far as we've been doing a great job as a team so far.

"We're going in the right direction, we're going to give our maximum in this final three races, and then put all the effort over the winter to prepare for next year. Obviously we'll have a new car, it will be a different year but we just have to stick to our plans and continue going in the direction we've been heading to."

Since Maurizio Arrivabene took over as team principal and Sebastian Vettel joined the Finnish driver as his team-mate, Raikkonen says Ferrari is an enjoyable team to work with again and after a productive 2015 in which he has closed the gap to Mercedes next year will be when Ferrari launches its full assault back towards F1 domination.

"In many ways it is a changed team. It's a nice place to be, again, things have changed a lot, some people have changed too but it's a very solid team, the atmosphere is good and, obviously, the results help," Raikkonen explained. "We all know why we are here, we want to fight for championships and win races and we're happier when things are better but, as Ferrari, we're still not where we want to be and hopefully next year we can be there.

"But who knows? We will only know when we put the new cars in the circuit next year, but Ferrari is a great place to be and the team is being run in a very nice way. I think everybody appreciates in the team where we got to in a very short period of time."