Red Bull's route to preparing for 2016 was fraught with indecision over its power unit.
It is invariably a team that leaves a new car's completion until the last minute anyway, so expect the RB12 to change a great deal over the two weeks of testing.
The car has shown some of its secrets so far, but there is also evidence that Red Bull is holding its final specification back to maximise development time and exploit all possible gains in the windtunnel.
The perfect Formula 1 car from 2016 Mercedes swept all before it again in 2016, but it was not the perfect car - take some bits from rival teams and you'd have quite the potent racer... F1
F1's new development war has already begun The last grand prix weekend before the winter offered teams a great opportunity to get a headstart on work for 2017 F1
F1 teams still pushing with an eye on 2017 The F1 development race hasn't slowed down as much as expected in the final races of the current rules cycle, with teams still pushing to maximise running before the winter break and Mexico-specific solutions on show this weekend too F1
A glimpse at McLaren's 2017 work at Austin? McLaren struggled at Suzuka, but on Friday at Austin it introduced developments to its MP4-31 that could well have next season in mind F1
How Ricciardo helped Renault rediscover its swagger Daniel Ricciardo is McLaren-bound next season, but leaving a Renault team which is undergoing a resurgence on and off the track. He and team principal Cyril Abiteboul tell STUART CODLING and BEN ANDERSON what's been happening behind the scenes F1
The great unheralded Imola F1 drives The return of Imola to the Formula 1 calendar for this weekend's Emilia Romagna Grand Prix provides an opportunity to assess some of its less-remembered but still noteworthy drives. Autosport highlights those which have been forgotten by history F1
What the first look at 2021's F1 aero rules tells us As well as learning a new circuit to Formula 1, several teams used their Portuguese GP practice running to try out new aero concepts ahead of rule changes for next year - providing an interesting first insight into what 2021 F1 cars will look like F1
The pre-race call that gave Hamilton the edge at Portimao Lewis Hamilton seized Formula 1's all-time win record with victory in a tricky Portuguese Grand Prix for Mercedes. He went wheel-to-wheel with Valtteri Bottas and won out, but a pre-qualifying decision was key to gaining a decisive advantage F1
Highlights
Series
Explore
