Michael Schumacher will not only have an upgraded car in Spain, it will also be a completely different chassis.
Mercedes' Norbert Haug suggested after the Chinese grand prix, where the seven time world champion was comprehensively beaten all weekend by his teammate, that the 41-year-old's actual chassis is carrying an inherent problem.
"I think we need to replace his chassis for Barcelona," Haug is quoted as saying by the German broadcaster Sky.
Nico Rosberg qualified the sister W01 seven tenths faster than Schumacher's, and then finished on the podium, nearly a minute ahead of his famous countryman.
"Don't worry: Michael has not forgotten how to drive," said Haug, after Niki Lauda slammed Schumacher's driving as "mediocre".
24-year-old Rosberg, meanwhile, denied that the result in Shanghai is confirmation about who is Mercedes' number one driver in 2010.
"It's definitely not the case," he said. "It's even between us. Of course I'm very, very happy with the way it's going for me, but we both get the same possibilities."