Complex sentence: The car landed on a spot in a field some 25 feet lower than the track and it then exploded and burst into flames; the hapless Englishman was also killed instantly by this horrific crash.
Split into simpler sentences: The car landed on a spot in a field some 25 feet lower than the track and it then exploded and burst into flames. The hapless Englishman was also killed instantly by this horrific crash.