re joined that the F1 grid 2015 together with and made solid progress in 20-16 , but authenticated its bundle for 2017 and suffered a major reliability setback.

That prompted to split with , rendering it to rebuild its own standing in 2018 with ’s junior ensemble and also make enough improvements to convince the senior team to make the switch from to the coming season.

’s 2019 engine will soon be a further development of the brand new design it introduced in 2017, as it considers it has untapped potential from the concept in addition to promising better reliability than another overhaul.

“we could carry within the current layout, or concept, of PU,”” F1 technical director Toyoharu Tanabe told Motorsport.com.

“We don’t know exactly [what the limit is] because we haven’t achieved a high level but we started with the other concept and shifted it for 2017.

“We heard some thing earlier in the day, then shifted it. In 2018, we conducted on this theory and improved performance and reliability.

“In the moment we think this concept change is not erroneous. It’s convenient. Still we [intend to] carryover this concept and try to improve.”

Despite recent reports implying had discovered a new oscillation problem when analyzing its 2019 engine, it is understood that the manufacturer have not experienced a major setback although is hoping to make more progress with the evolution before testing begins.

Convincing to modify to was a major effect for the Japanese manufacturer after just one year with .

As previously mentioned , the close relationship of those 2 -owned teams will give a technical rise since it prepares to supply two teams again — plus additionally, it can help validate the decision to continue to preserve the exact identical engine idea.

“If you change the concept of the look a lot, it’s very hard to get reliability,” said Tanabe.

“It is dependent upon the design level but I’m comfortable with carrying over our existing concept. We’ve got a brand new team, a new design of the car.

“It is really only just a little bit simpler to carryover that idea, since the detail is at the installment of the car.

along with , has communicating and that’s easier for the side because knows our power apparatus.

“They could convey a issue or some kind of concern from the chassis perspective, plus so they are able to get back to us.

“If we have a completely new, or much updated layout, then it has a great deal more work required.”

Red Bull and Honda badges on the side of the Toro Rosso team truck