New chassis for Grosjean

Romain Grosjean has revealed that he will test a new chassis when he takes to the track for Tuesday’s opening day of in-season testing.

The Haas driver has been unhappy with his car for several weeks and went as far as to tell his pit wall that it was “undrivable” in Friday’s practice for the Spanish GP.

In an effort to find a solution to the on-going problem, Haas will hand Grosjean a new chassis for this week’s two-day Spanish test.

“We’ve been struggling since China with something we don’t quite yet understand so we’re going to change everything for the test,” Grosjean told Autosport.

“It’s been hard for everyone because in terms of work everyone has been doing a great job of looking at the data and finding a solution – making the car on paper better – and we always underline that these are problems that Esteban doesn’t have.

“It’s quite strange that it’s only happening in one car and that’s why it’s going to be very important for us at testing to change the chassis and put the set-up in and see if things get better.”

The Frenchman added that Haas has even tried a change in “philosophy” regarding the set-up of the VF16 to resolve the issue but after that failed to achieve optimum results, realised a new chassis is the best way forward.

“We changed the philosophy of the set-up we’d made for China so this should bring the car back to where it was but actually it didn’t happen as much as we wanted.

“We went in a good direction that’s why I’m saying that everyone has been working well.

“But under the table, there’s something that we don’t see or understand.

“That’s why we want to change the chassis to see if there’s something weird in terms of torsion or something that’s creating issues.”

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