The new Red Bull has caught the attention because its sidepods and what Wolff has called "The Great Wall" engine cover have much in common with the concept used by Mercedes on its 2022 and 2023 cars, but which has now been abandoned.
However, Wolff says that while the RB20 looks outwardly like the W13/W14 series, its real secrets are hidden from view.
"Well, there are a few things that they have adopted from our car," he told Austrian broadcaster ORF.
"Not just the zero sidepod, but of course we also had this bodywork engine cover, which we called 'The Great Wall', which they have adopted. It's not marvellous aesthetically, but it makes sense.
"But the real performance takes place on the underfloor. These are ground-effect cars, where it's also about the downforce and the mechanical handling characteristics.
"And that's where they've been very strong in recent years, and there will probably have been a further development, but not such a radical change of concept as you can see at first glance with the bodywork."
Wolff said that Red Bull had followed what the wind tunnel suggested in opting not to simply develop its 2023 concept that was already working well and had yielded victories in all but one grand prix.
"An extremely courageous step," he said. "Because if they had proceeded conservatively, they would have developed a really good car further.
Source: Autosport