Via Reddit kwam ik dit vertaalde interview tegen. Gaat over wat Kubica nou van de Williams vind. Om het nu positief te noemen gaat ook wat ver.

What has changed in the car since the last time you drove it?
It's not easy to answer that, because the track is completely different. I think this one fits our car better than the one in Barcelona. The car was more predictable, which is good, and Lance's comments on it are similar. We concentrated mainly on extreme setups, ones you wouldn't normally use. It was about checking how the car drives with such setups, in extreme conditions. That's why I shouldn't compare this day to my previous drives.
It seemed like you had problems on the first stint
For me the beginning of the session was actually better than the latter part. You have to ignore those couple of laps when I had to learn the racing line. Also, I couldn't make any mistakes, because we have quite few spare parts. Honestly, I was happy with the first stint. I had a good "feeling" (possibly meant "timing") since the start.
What can you learn in 90 minutes of the practise, having driven less than 40 laps?
I could learn something, but that's not my job. It's not about what I can learn, but what the engineers can learn. You could say, that this session with me behind the wheel was used to test things you wouldn't test with racing drivers, because you wouldn't want to waste 20-30 laps of the first practice, especially with uncertain weather forecast. I knew what programmes we were running, I had to do what I was asked to and I was happy to help. I hope my work will turn out useful.
How big of a progress have you made with the car since you're saying it's more predictable even on a different track?
I can't say that. Because if I say we took a step forward you will write that we made progress, while it's impossible to say we made progress. I think it was more the conditions and corners layout that made my life easier, same as it will to our racing drivers. We're getting out of a tough period but I think we'll be faster than last weekend, but only because of external factors, not the car. It's definitely more predictable so it gives you more confidence when driving making you able to minimize the weak sides of the car.
If you could improve one thing in the car, what would you work on?
Only one thing can improve our times by 2-3 second a lap. It's downforce. If you have better downforce, everything is easier. Drivers do better, engineers have more freedom in looking for optimal setups, tyres work better, because you need less work to get them into right temperature, which makes them degrade slower. There's no cure for everything in Formula 1 but there's one very strong cure and it's downforce.
How much of a progress can Williams still make?
We can still improve but others team make progress too. So even if we get better, a lot will depend on how much progress the others make. It's not a matter of a week. I'm certain we have a batter race ahead of us than in France but the car is the same, that's a fact. Only now the external factors, conditions on the track help us. Although I've known since I started in Formula 1 and you probably know it too that all teams make progress incredibly quickly. Meanwhile, we're still fighting our problems, not concentrating on improving the pace. Obviously solving these problems will make our results better, but it takes a lot of time. It's a difficult situation and a difficult question.
Are you concentrating on 2019 already?
Me? No, I'm focused on every next day, trying to do my best, but for us... We need to understand why we lack in pace. Only when you know why you're slow you can build a better car. If you don't understand it then there is a risk for you to arrive in February with a car that suffers from the same problems. That's why, in the first place, we need to be sure that correlation between data from the simulator and the wind tunnel is good. If we know where exactly we have problems we won't have to try desperate things after the summer break. You need to have a deadline for such things. You're also working on 2019 right now but you need to divide your focus. The best teams have more options, they can split their teams to work on two different projects. If We want to improve we must be more efficient than they are which is not that simple. It's not an easy period for us but I must say it's also an interesting challenge. It's a good chance for Williams to show everyone they're still one of the top teams. Because if they manage to turn this situation around, hats off. It's a chance to show that it's still a team of people capable of making a change and that should be the goal. I'm not saying it can be done in a month but if the car is good next year it means all those people did a great job.
Is there anything good about your car now?
The engine.
Is that all?
Didn't you ask about one thing? The power unit. The colours are also nice.
And the bodywork?
Bodywork? It's strong.
https://old.reddit.com/r/...on_of_his_fp1_result_and/
Onder de streep is het gewoon een PoS...
Kubica geeft indirect toe dat er correlatie problemen zijn, maar belangrijker is dat ze gewoon geen downforce hebben. Gewoon niks. Dat lijken we ook steeds te zien aangezien die auto nooit eens stabiel op de weg wil blijven liggen.
De problemen lijken dus terug te herleiden naar de beslissig van Williams jaren geleden, om als enige team een low drag en low downforce auto te gaan bouwen. Jarenlang waren de Williams auto's belachelijk snel op rechte stukken, en niet veel soeps in bochten en langzamere stukken. De Mercedes PU deed eigenlijk alles. Nu met de nieuwe reglementen en het verkleinde gat, heeft Williams moeten wisselen van concept, maar veel downforce. Dat is totaal mislukt, en nu hebben ze een bagger auto...
Never argue with an idiot. He will drag you down to his own level and beat you with experience.