Jul.18 (GMM) Giedo van der Garde has repeated his denial that Heikki Kovalainen is stalking his race seat at Caterham.
After a mediocre first half-season in F1, the Dutchman recently dismissed rumours former Caterham racer Kovalainen was set to replace him later in 2013.
"I know where they (the rumours) are coming from, but I also know that I have a watertight contract for the rest of this season," said van der Garde.
Further dismissing the rumours, he added: "I am busy enough with everything that I am doing and learning."
Van der Garde said qualifying 15th at Monaco was a high point of his career.
"I didn't expect to reach the second qualifying segment. That was great," he said.
But the low point quickly followed, in Canada, where collisions and a penalty earned a harsh 'pay driver' rebuke from Mark Webber.
But van der Garde insisted: "Webber and I already settled everything after the race. He is respectful to everyone, even the rookies."