Why steering wheels should always be round, not square

Audi had more than 100 steering wheel designs – soon it will have just five, all round
We need to abandon the gimmick and return to the only shape that actually works: a circleI have an affliction that, when I begin to think about how difficult it is to find a pleasing steering wheel in a new car, Feargal Sharkey's 1985 hit A Good Heart begins to play on repeat in my head - only with 'wheel' replacing 'heart', of course.
I've learned to live with it as something as inevitable as getting in