The team published images of the RB15 online with what it said was a temporary livery for filming before testing starts in Spain on Monday.
Renault and Red Bull broke ties last season largely because of the reliability issues that Red Bull were facing. "After my first run, I was smiling - very happy with how the vehicle was behaving plus the engine as well".More news: Apple accused over app for Saudi men to track wives
The four-times champions have switched engine supplier for the new season. "So our target is very much to put up a more consistent challenge across a whole variance of circuits, rather than just shining and circuits that were power-limited".
Max Verstappen is due to be first to drive the RB15 at Silverstone, with further Honda running taking place with Daniil Kvyat behind the wheel of the Toro Rosso this morning.
"I guess up until Australia you can't really set goals", said Verstappen. Also, the livery is very lovely, even though it's only for today. So, I'm always quite easy going. Luckily we didn't have any and it's very positive that we had this opportunity.More news: Justin Bieber reportedly seeking treatment for depression and anxiety
The team's new addition to its driver line-up, Pierre Gasly, arrives from junior squad Toro Rosso, which used Honda's power units last season.
"The first two or three weeks feel like they are good to have and then after a break you want to get going". While they will need to give Honda some time before they can realise their true potential, the data has already been very promising.
What do you make of the new Red Bull challenger and do you think Honda will help them scale new heights this season?More news: Arsene Wenger pinpoints one United weakness that caused PSG defeat