Complex sentence: Jefferies was defending his position from Sato on the straight linking turns three and four and the Japanese driver went into Jefferies's rear-end and punted his Trident Racing vehicle into a heavy collision with the wall lining the circuit at high speed.
Split into simpler sentences: Jefferies was defending his position from Sato on the straight linking turns three and four and the Japanese driver went into Jefferies's rear-end. Sato punted Jefferies into a heavy collision with the wall lining the circuit at high speed.