Kimi Raikkonen has said that he is enjoying Formula One, but doesn't know what 2014 will hold.
Raikkonen returned to F1 with Lotus at the start of this season and will remain with the team for 2013.
"I hope that we will have a good car - and the indications point in that direction. It will be a bit easier to start into the season because now we know what to expect from each other in the team", he told the Official F1 website.
"So we will definitely try to do better than this year, but everything revolves around a good car".
"I have a contract until the end of 2013 - and then we will see. 2013 might be my last year - and it might be not. You never know. At the moment I like it".
Raikkonen also gave an insight into his friendship with Sebastian Vettel.
"I met Sebastian a long time a go in a race. He was a young guy then and I started to talk to him. Ever since that time we talk to each other when we meet. He is a straightforward guy and I like that".
"We used to live close to each other before he moved to his new place and he has spent quite a bit of time in Finland with his Finnish friends. And yes, I also would consider him a friend".