Red Bull is perfecting a "system" that is mimicking the effects of banned traction control, Germany's Auto Motor und Sport reported on Thursday.
The magazine said the complex electronic mapping system, although entirely legal, is able to put Renault's V8 engine down to just four-cylinders under certain circumstances.
"I am sure for the races to come that we will be able to enhance the system even further -- to profit even more," world champion Sebastian Vettel told F1's official website.
He told reporters: "Other people will never figure out how we've done it."
Mercedes' Lewis Hamilton on Thursday stirred the pot by admitting Vettel's traction in Singapore was...
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