#5 He out-paced Williams' 2018 drivers

This one is a bit divisive, but hear me out. As mentioned in number 1, Kubica has competed in three tests for Williams during 2018, tests where full-time drivers Lance Stroll and Sergey Sirotkin also at times competed in.
Sirotkin did post faster times than Kubica, but the Pole was faster than Stroll. Let's address the elephant in the room, testing times are far from the be-all and end-all when it comes to both the pace of the drivers and the cars.
Differing fuel loads, engine modes, track conditions and tyre compounds mean that lap times are notoriously unreliable. However, the quick times by Kubica are undeniably a good sign. Indeed, he backed this up by going second fastest during day two of the Hungary tests in the slowest car on the grid and on the FW41's worst circuits.
The only way to know for sure how fast Kubica is to wait until Australia, but the signs are good, let's hope that Williams make a much better car in 2019 so that he can score regular points.
How do you think Kubica will get on in 2019? Let us know in the comments below!