Now, Sainz says he is content to race with the midfield team however could not see it as a "sustainable" level should it continue for much longer, adding that other avenues could be more tempting to him rather than racing minor points positions.
“You see fellow drivers like Marcus [Ericsson] going to different series and immediately being on the pace and potentially winning races or being on the podium,” Sainz told MotorsportWeek.
“Then you see yourself in Formula 1 and you’re stuck in P7… it’s something I haven’t got bored of as it’s only my fifth season but you think about Perez, [Nico] Hulkenberg, they’ve been here for many races and it’s something I struggle to feel is sustainable.
“It needs immediate change and it needs immediate refining in Formula 1 to change that trend.
“It’s not something that as racing drivers in the midfield we are going to be waiting here forever just finishing P7 in every race.
“I think it’s definitely something that needs to be addressed and hopefully 2021 they will make it happen.”