I've watched F-Renault 2.0 recently. The commentator said

FR 2.0 requires to be very-very gentle on throttle. But at the same time it needs a "stiff hand" to drive. It is specially designed so that you need to push it hardly to go into corners.

I'm interested, how in particular the designers could make it be like this?

I wouldn't listen to what a commentator says about a car's design. Unless he is reading word for word of what a real engineer has said about it, then I would wonder. But I usually hear commentary like this whenever they see a car in action. Perhaps they talked about this after viewing a cockpit cam and seeing how the driver controls the car? Or a driver wildly entering/midway through a corner at the limit and almost used too much throttle? Possibly they saw that it just takes some physical strength and very fast movements to snap the car into a turn? I'd imagine that is normal just to let the tires work depending on how they set up the car.

But really, this sounds to me like typical commentary where they see something happen and have to... well... comment on it...

I mean, commentators aren't always very accurate at what they see.

I may have translated it in English badly. "Push hard" can have many meanings No, the commentator is Andrei Larinin (says nothing to you, of course, he is the director of the Russian F1 Racing), he is a very intelligent person and speaks with the people who are in action: racers, racers' managers, team managers.

Yes, there are commentaries like this on the same channel, those persons switch to racing from football. But Larinin is in a different class, he is much more credible, I've never heard him tell an empty phrase to fill the time. The worst that I can assume is that he would tell this from the words of racers only. Well, of course, racers can say commonplaces too.

If it as all like an F3 car, then I think what he means is that they are quite oversteery cars below the limit. It's only when you really try (which I've only been brave enough to do on one corner as I've not had much chance to practice yet) that understeer builds up and 'balances' the car.

So if you don't push you tend to get oversteer (either on turn in or on the throttle etc), and you need to force understeer to cancel this out.

Thanks!