Simplify the following text for a Grade 11 native English-speaking person.
Original: Rather than using a customer chassis , the team commissioned a BMW powered design from Giacomo Caliri 's FLY studios -- previously responsible for the Fittipaldi Automotive team 's F5A Formula One car .
Simplified: The team commissioned a BMW powered design from Giacomo Caliri 's FLY studios . Caliri had earler build Fittipaldi Automotive team 's F5A Formula One car .