Complex sentence: Dallara also produces the chassis used by the Indy Racing League, GRAND-AM Rolex Sports Car Series and the GP2 Series and a Dallara chassis will also be used by the GP3 Series.
Split into simpler sentences: Dallara also produces the chassis used by the Indy Racing League, GRAND-AM Rolex Sports Car Series and the GP2 Series. A Dallara chassis will also be used by the GP3 Series.