Kubica, Deletraz and Yi Yifei led onto the final lap in WRT's maiden attempt at the race two years ago, only to be foiled by a freak throttle sensor failure that caused their engine to shut down and meant they were not classified.
After spending 2022 at Prema, finishing second at Le Mans, Kubica and Deletraz returned to WRT for this year's World Endurance Championship and led for a total of 39 laps in the car they shared with Rui Andrade at last weekend's 24 Hours.
Despite a foot injury for Inter Europol Competition's Fabio Scherer, the Polish entered car was out of reach in the final hours and finished 21s clear at the finish.
Vosse, whose WRT outfit will run BMW's World Endurance Championship programme next year, told Autosport that his disappointment at missing out on the victory was heightened by the previous misfortune suffered by Kubica and Deletraz.
"At the end of course I’m disappointed and I was dreaming of giving back to Robert and Louis what we lost in 2021," he said.
"We could not make it, we have to accept it and start from now working for next year.
"You don’t come to Le Mans to finish second. If you have a lineup and a team to win, you go for the win. We did not, we finished second but we are leading the championship."
Source: Autosport