Kiwi racer Brendon Hartley has been buoyed by the performance of Toro Rosso's Honda engine at this week's winter test in Barcelona as he begins his first fulltime season in Formula 1.
Hartley and teammate Pierre Gasly completed a lot of laps without any reliability issues, backing up the feeling the team had since beginning its partnership with the Japanese manufacturer.
He is excited about the prospect of the Honda power unit this year.
"So far it has been working really well," the 28-year-old said. "They have a good development programme. From Toro Rosso's point of view - we are a private team - to have full manufacturer support and being the only supplied team has a huge benefit.
"We have a huge team working just for us. I think there are more than 30 people from Honda at this one test for one car."