RED BULL boss Helmut Marko has fired a warning to their Formula One rivals after switching engines to Honda.
But Marko reckons his outfit will be able to challenge Lewis Hamilton and Sebastian Vettel at the front of the grid more frequently this time around.
"The Honda engine is already slightly above the Renault engine.
If you combine our GPS data with the data provided by Honda, we'll be in the Mercedes and Ferrari region.
"Even if we should be 10 or 15 kW behind, that was no different in our Renault era with the eight-cylinder engine.
However, life with Honda is not completely rosy as Marko admits his team will likely incur engine penalties again in 2019.