As the penultimate race of the season and with the previous race just a week ago, the Brazilian Grand Prix did not seem like a race for big development strides. Yet Mercedes was still improving its 2014 car.
Elsewhere in the pitlane, a wide array of sensors were being employed by teams as they gather crucial data on planned designs for 2015.
MERCEDES
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
The magnificent seven set to contest FE's title showdown After a five-month pause, the 2019-20 Formula E season finally resumes with a six-race Berlin showdown. Although anyone can still mathematically win, seven drivers stand above the rest based on form and history. Autosport judges their credentials FE
The engineer who took Reynard to another level Senior technical transfers between customer racing car manufacturers were rare at the height of their 1990s pomp. But Bruce Ashmore's move from Lola to Reynard bucked the trend and set in motion a shift in the balance of power in US open-wheel racing Engineering
Ask Tim: Why Albon isn't the biggest scapegoat at Red Bull A heavy crash in FP2, dropping out in Q2 and an early skirmish with Kevin Magnussen meant Alexander Albon's British Grand Prix performance came under the microscope, but Autosport's technical expert says there's another figure that has been harshly treated F1
Why Silverstone is "not friends" with tyres A series of high-profile failures late on in the British Grand Prix led to a heart-stopping finish for winner Lewis Hamilton. But with another race on the tyre-punishing Silverstone coming this week, there is cause for deep concern F1
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