Cranks ? Even Bentleys in the 1960s had one, for use in emergencies. The trick was not to have your thumb wrapped round the handle. If a big engine started, there was a heck of a kick through the crank handle, which wouldn't do your thumb any good.
Power steering? Never noticed the lack, unless trying to steer a power assisted car without the power on. The gearing was designed for power, not human effort . But front wheel drive cars of the old type, of which the Citroen Light 15 was a star example, required arms like Frank Bruno's, because of all the weight of the power train on the front. Clutches on old high powered cars were another test of strength.