“Medium-speed, high-speed is pretty similar but that depends a lot on the downforce levels you’re running every single weekend so it’s a bit difficult to say.
“On this track, they were very strong in the low-speed corners. And that is normally pretty good for Monaco [the next race] as well.”
“Mercedes have done a very good job in extracting performance from the car in that part of the circuit,” he said. “I think that we are not at our optimum yet in terms of where we’d like to be with these new regulations and construction of tyres.
“This weekend was a step forward and hopefully more will follow.”
“I think Max’s first lap was outstanding,” said Horner, whose driver swept past both Ferraris after the first corner. “We had an aggressive [two-stop] strategy but we had the pace obviously to beat the Ferraris.
“Considering where we were in the pre-season test eight, nine weeks ago, I think to have caught that gap, to have got that performance on the car, is really encouraging.
“Obviously now we have to try and focus on diminishing the gap further to Mercedes.”
Additional reporting by Jonathan Noble