McLaren Mercedes have a lot of work to do
Mercedes` redesigned V8 engine is an improvement over the initial version, according to McLaren test driver Pedro de la Rosa.
But with his engine expiring in a cloud of smoke at Jerez last Friday, the Spaniard told the local Marca newspaper that the team `still has a long way to go`.
"I did feel an improvement," the 34-year-old confirmed. "I do believe that we are on the right track."
Sources have confirmed that the updated engine is significantly more powerful than the previous Mercedes V8 spec, but de la Rosa is cautious when musing about engine reliability.

"In the coming tests, the focus will very much be on collecting much more mileage," he said.

Like much of the F1 fraternity, McLaren will unfurl at Valencia this week, where Kimi Raikkonen will feature on a four day programme.

"Hopefully we`ll be able to complete some more running there," the Finn said.

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