The Sauber C4 was the fourth sports prototype racing car that Swiss Peter Sauber designed and developed.
It competed in the European 2-Litre Sportscar Championship, where it managed to score 1 win and 5 podium finishes.
It was powered by the same naturally aspirated 2.0 L (120 cu in) Ford-Cosworth BDG four-cylinder engine as its predecessor, developing 275 hp (205 kW).
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