user: Question: What car has a March 90CA Chassis?
Columns: ['Year', 'Chassis', 'Engine', 'Start', 'Finish', 'Team']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1984.0, 'March 84C', 'Ford Cosworth DFX', '7', '2', 'Bignotti-Cotter']
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Chassis" = 'March 90CA';