Complex sentence: In 1991, Paul Warwick, younger brother to then-Arrows F1 driver Derek, dominated the first half of the series but died in a fatal crash mid-season at Oulton Park, but retained the lead through the final round and was awarded the title posthumously.
Split into simpler sentences: In 1991, Paul Warwick, younger brother to then-Arrows F1 driver Derek, dominated the first half of the series but died in a crash mid-season at Oulton Park. He retained the lead through the final round and was awarded the title posthumously.