Apr.15 - Silver-clad heads are being scratched in Shanghai.
That's because Ferrari is clearly now the fastest car in formula one -- both in the Bahraini heat a week ago and now in chilly China.
Lauda, and his Mercedes co-chief Toto Wolff, think the problem is tyre related.
"Our problem is that our tyre window is far too small," said Lauda. "Ferrari has a much bigger window than us."
Wolff, though, urged against panic.
"A car doesn't lose its speed from one day to the next," he said. "There is nothing fundamentally wrong. We have a great car."
He thinks that hotter weather on Sunday will help the Mercedes car.
"If we still have a problem then we have a lot of understanding to do," admitted Wolff. "But normally we get ourselves out of trouble."
Some paddock pundits, however, think Saturday in China was extremely noteworthy.
"If this is the start of a new era, then Lewis will have to think carefully about whether he signs up to Mercedes for a long term contract."
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