Simplify the following text for a Grade 6 native English-speaking person.
Original: In the series ' first season ( 1996 ) , 1992 to 1995 model year CART chassis built by Lola and Reynard were used .
Simplified: In the series ' first season in 1996 used older CART chassis . Any chassis built by Lola and Reynard from 1992 to 1995 could be used .