Toro Rosso team boss Franz Tost is convinced the progress of Honda will see Red Bull able to fight for wins in 2019.
The Japanese manufacturer has been making strong gains this season both in performance and reliability, even if both Pierre Gasly and Brendon Hartley are well above their allocation of parts for the season.
It is this which convinced Red Bull to leave Renault after 12 years and make the switch for next season, though is also believed to be partly why Daniel Ricciardo chose to leave for the French manufacturer.
Having had the experience of working with Honda though, Tost insists it has only been positive.
"Our collaboration with Honda is fantastic," he told Spain's Marca newspaper. "Honda is a very good and very serious company and they have improved a lot compared to last year."
Comparisons are often drawn between Honda and Renault, with claims that the former has now almost caught up with the latter, and with a bigger base than the French manufacturer, Tost sees more potential.
"Honda is a very successful company that wants to win races," said the Austrian.
"In Canada, we had an improvement that gave us three tenths. We will have another in America and in 2019 there will be more. I am convinced that the power unit will be very competitive."
Pierre Gasly, who has scored three top-six finishes this season, also sees the chance to work with a top team like Red Bull as additional motivation for Honda.
“To have four cars instead of two is always better in terms of development and also with such a big team as Red Bull, we know how big and how strong they are," he told RaceFans.
“For sure, they’re going to push Honda massively in the direction so if we can share all our strengths together for sure it’s going to be positive.
“I think also the work for next year will be starting now because all the improvements we can make at the moment will be useful for Red Bull next year.”
The Frenchman may also have the chance to be in the RB15 with rumours he could be chosen over Carlos Sainz for a promotion in the face of opposition to the Spaniard from Max Verstappen.
Ericsson says Leclerc not only responsib
Alonso: F1 no longer the show that made
Mercedes warn Liberty of tough fight ove
Stroll: I've 'improved well as a driver'
Ricciardo: Abu Dhabi podium would be 'fi
Hamilton expects to raise game against V
Prost: Reaching F1 without financial sup
Hamilton sees greater Mercedes satisfact
Perez: Alonso's plight with McLaren 'sho
Toro Rosso target Albon named on Formula
F1 weekends could be shortened & 'unattr
Mercedes: Baku loss cost Bottas champion
Raikkonen draws Lotus comparison ahead o
F3 World Cup - Motopark’s Dan Ticktum cl
Hamilton forced to clarify 'poor' India
Ferrari expecting 2018 loss to motivate
Ricciardo expecting his bad luck 'to dis
Hamilton could face Abu Dhabi engine pen
Sainz rejects idea Verstappen blocked 20
Haas concede defeat to Renault in race f
Honda hopes to 'accelerate' engine gains
Hamilton praises Formula E project but r
Sauber team up with Charouz to launch yo
Brawn: Simulations producing 'tangible'
Alonso hints at more 2019 announcements
Hamilton would add races in historic F1
Hamilton hoping for more battles with Ve
F1 CEO Carey does see path for new manuf
Red Bull don't 'condone violence' but 'd
Kubica & Ocon set to confirm Williams ro
Hartley frustrated by Gasly ignoring tea
FIA rule out changes to weighbridge rule
Bottas: Regularity of defending from riv
Verstappen 'still not able to manage his
Whiting: Hamilton/Sirotkin incident 'an
Whiting: Ocon 'wrong' to fight Verstappe
Raikkonen believes P3 the best he could
Ricciardo: 'Every time we start out of p
McLaren 'confident' Indy 500 plans won't
Red Bull call for Ocon race ban as Verst
Mercedes reveal Hamilton had 'failure im
Vettel gives Brazil race 'one out of ten
Hamilton tells Verstappen: 'You had more
Hamilton 'proud' of Mercedes as double c
Ocon claims Verstappen 'wanted to punch
Brazil GP: Hamilton inherits victory as
Ricciardo jokes 0.002s loss to Max 'more
Alonso & McLaren confirm Indy 500 return
Hamilton blasts 'disrespectful' Sirotkin
Vettel slams FIA weighbridge process aft
Brazil GP: Hamilton beats Vettel to pole
Brazil GP: Vettel sets new lap record in
Ferrari's Clear to have key Leclerc role
Hamilton says 25-race calendar would dri
'Realistic' Verstappen insists Red Bull
Red Bull reveal a Mexico marshal caused
Vettel expects Ferrari progress in Brazi
Williams offer Kubica 2019 seat but Ferr
Red Bull see race potential even if Braz
Brazil GP: Bottas pips Hamilton by 0.003
Brazil GP: Verstappen leads Vettel & Ham
Tyres and two-tier F1 to dominate driver
Verstappen: Mexico anger post-qualifying
Hamilton doubts Bottas would want F1 win
Alonso: McLaren optimistic 2019 car will
Ocon rejecting non-F1 offers to 'stay cl
Massa: Vettel 'more guilty' for 2018 tit
Hamilton to Leclerc & Gasly: 'No substit
Red Bull: 2019 front wings a costly 'sho
Sainz claims Schumacher name alone won't
Bottas: Hamilton's adaptability is his b
Force India: Signs point to Stroll being
Liberty want to 'preserve' classic F1 ra
Williams still getting over 'enormous sh
Hamilton doubts he would have recovered
Brazil step up security ahead of F1 race
Vietnam confirmed for 2020 F1 calendar
Studious Schumacher 'not as crazy' as Ve
Arrivabene: Ferrari still lack winning '
Ferrari CEO admits F1 budget cap 'makes
Mercedes target tyre woes and Constructo
Force India see catching F1's big three
Sainz has no issue with Renault over sig
Ferrari slam 'fake' Binotto rumours aime
Smedley confirms Williams departure afte
Sauber: Don't compare Leclerc to Hamilto
Two prospective manufacturers rule out F
Magnussen claims current cars leave F1 d
Red Bull: Immediate Gasly comparisons to
Vettel: 2018 Ferrari 'strong' but never
Webber fears Renault a threat to Ricciar
Hamilton: Bottas relationship as teammat
Magnussen: Haas should be 'proud' to be
Tombazis: FIA had to 'intervene' with 20
Zandvoort reportedly offered 2020 Dutch
Vettel wants himself & Leclerc to 'work
Mercedes: 'This is the best Lewis Hamilt
Ricciardo confirms participation in fina
Haas fail in bid to overturn Grosjean's
F1 bosses warn of 'step backwards' with