Complex sentence: Numerous drivers, including defending world champion Michael Schumacher, spun off the track, the reigning World Champion making an uncharacteristic error while under pressure from newcomer Cristiano da Matta; there were also several accidents, as drivers fought the weather as well as each other.
Split into simpler sentences: Numerous drivers, including defending world champion Michael Schumacher, spun off the track at this point. There were also several accidents, as drivers fought the weather as well as each other.