Original sentence: As oposition to modern Formula one drivers, Juan Manuel Fangio started his racing career at a mature age and in fact he was the oldest driver in the field in some part of his formula 1 career.Being a quintuple Formula one World Champion, he is considered to be the best driver of all time, even above drivers like Ayrton Senna and Jim Clark.Juan Manuel Fangio (June 24, 1911 - July 17, 1995) was a legendary Argentinian racing car driver.The dangers of racing almost protectionless were present in the fangio days also the rivals he had to face were some of the best drivers ever, as of special note there are Alberto Ascari, Giussepe Farina and specially his fiercest rival Stirling Moss.The perfection of his driving with all the competition and risks involved have made him to be called the best driver ever for more than 5 decades, even the resent successes of German Michael Schumacher have not been enough to steal that title, although many consider both Ayrton Senna and Jim Clark to be just in the same level but never above, still, a comparisson is difficult given the differences in nature of the sports through the ages
Edited sentence: Fangio is widely considered to be one of the greatest racing drivers of all time, possibly above Ayrton Senna and Michael Schumacher.Juan Manuel Fangio (June 24, 1911 - July 17, 1995) was a noted Argentinian racing car driver and winner of the Formula One championship five times, including four in a row from 1954-57