Yvan Muller insists it is too early to think about winning another World Touring Car Championship title next year after Citroen officially launched its 2014 programme at an event in Versailles.

The French manufacturer will join the grid next year with the all-new C-Elysee and has signed Muller to partner multiple WRC champion Sebastien Loeb, with Jos? Maria Lopez confirmed in a third car during the launch.

Muller joins Citroen having taken his fourth championship crown with RML during the 2013 season, moving him clear of Andy Priaulx as the driver with the most WTCC titles to his name.

The 44-year-old will seek to add to his tally of race wins next year with the new Citroen but insisted it was too early to think about the title in what will be the first season of circuit competition for his new team.

"We have a lot more work ahead of us, but I have a lot of motivation as part of a new programme and I'll be giving 300 per cent," he said. "It may be too early to speak about a fifth title as we are quite far from that but are working hard to have the best car possible. It's true that Citroen doesn't have as much experience on track [compared to others] but we are working hard to reduce the gap in the time that we have. In 2014, I want to be towards the front."

Muller and new team-mate Loeb have a combined total of 13 FIA World titles between them, but he added that it was important for the pair to work together next year and not become concerned with beating each other on track.

"We have to make sure we work together," he said. "It will be a difficult level of competition against the other teams and manufacturers, so we have to work as a team to try and beat them."