The moment Eddie Sachs is living through in the cockpit of his speeding Offenhauser racer (above) and in retrospect (right) is one few drivers would want to share. Coming out of the third turn of Indianapolis' "500" oval in a practice ride last week, the veteran driver saw his left front wheel was coming off. At 135 mph he knew that to step on the brakes would be fatal. He nursed the crippled car along carefully into the fourth turn. There the wheel came off completely, sending Eddie's car screeching and sparking down 1,000 yards of straightaway before it finally stopped.