April 22nd, 2018
McLaren readying big upgrade
McLaren have pinpointed next month’s Spanish GP as the race where they will start to form a clearer judgement on their 2018 car.
Source: http://www.skysports.com/f1/news/12040/11332356/mclaren-target-spanish-gp-for-biggest-upgrade-in-bid-to-close-gap