Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_70742 ( "Year" real, "Chassis" text, "Engine" text, "Tyres" text, "Points" real )

### Question ###
What are the lowest points that have a Mugen V8 engine and a Reynard 91D chassis?

### Accurate SQL ###

SELECT MIN("Points") FROM table_70742 WHERE "Engine" = 'mugen v8' AND "Chassis" = 'reynard 91d'