Latest is that the Mercedes "clever" DAS may be challenged and disallowed due to the aerodynamic changes that result by moving front wheel toe angles while in motion.

First incident between a Silver Arrow and any other car on the grid, and Ferrari and RBR will use this as an excuse to say the system is dangerous. Doesn't matter if DAS had anything to do with it, or if it were mechanical or pilot error, it will be the chance for the other teams to negate Mercedes' advantage and they would be stupid not to try.

However, my prediction is that the only time a Merc will be close enough to another car will be the first turn, and when they start lapping the field (or re-lapping, in the case of the Williams cars).

https://www.bbc.com/sport/formula1/51682590

The Formula 1 teams have completed their pre-season testing programmes and the shape of this year's competition is beginning to emerge.

It is notoriously difficult to form any firm conclusions from testing because the number of potential variables is just too high.

More post-test analysis:

https://www.espn.co.uk/f1/story/_/id...-ahead-ferrari

https://www.autosport.com/f1/news/14...o-21-car-early

Ferrari could make an early switch to focus on its 2021 Formula 1 car if the gap to the front of the field is too big in the opening races.

The Italian outfit has admitted that it is behind its rivals as it heads into the campaign, and it is having to work on both its engine performance and aero package in a bid to recover.

The effort to catch up comes against the backdrop of teams having to carefully balance how much resource they devote to this season and how much they want to throw at 2021.

Ferrari team principal Mattia Binotto said for now the team's focus remained on recovering lost ground this season, but hinted at turning off the 2020 development push early if the situation looks bleak after a few races.

"How much will the 2020 catch up affect the 2021 [project]? - that's certainly a good point," he said as pre-season testing came to a conclusion.

"I think it's a compromise that we need to find out. I think we are very early in the season, and you cannot compromise the entire season itself.

"So at the start of the season, we certainly keep pushing on 2020 as much as we can, because it's time for us to understand the car and the weaknesses.

"And hopefully, it is things that we can address as soon as possible.

"If I see after a few races, and we will still understand that the gap is too big, then maybe it's a considerations that we can take into account.

"But it's early stage right now. I think it's just few days of testing.

"I think there are things that we can address on the car, hopefully quite soon. So at the moment, we should keep our plan as it was for 2020/2021."

Ferrari's rival Mercedes believes that teams need to be very careful in not switching their focus to 2021 too late, because doing so could result in them falling well behind.