Porker:
KresoF1:

285mm rears, even Corsas do not provide excellent traction. Only good traction. My friend felt that 570s is"undertired" sportscar. 

Which can be a good thing rather than a bad thing if the aim is to provide a fun steering car. We're seeing a lot of 'overtired' cars recently and it robs cars of balance, tactility and steering feel. 

Actually, I agree with you. Key word here is balance.