McLaren driver Jenson Button says the speed difference between his Honda-powered machine and rival cars was "scary" as he finished 15th at the Brazilian Grand Prix.
Button started the race from 16th spot on the grid and made up one place to collect 15th and was pleasantly surprised by his ability to compete with rivals.
"We never enjoy P15, but the race itself was reasonably pleasurable – I could push the car and fight people in the corners," he said.
"We know where our weaknesses are, so let’s concentrate on the positives. So there was an interesting feel to the car out there today, we had reliability, and we ended up 12 seconds behind the last points-scoring position, which is probably closer than we’d expected to be.
"Okay, we were a long way off the front-runners’ pace – when they come past it’s scary how fast they are, especially on the straights.
"But, as for the midfield pack, through the corners we’re pretty competitive, as I say, which means you can have a bit of fun out there."