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_name_48 (engine VARCHAR, entrant VARCHAR, chassis VARCHAR)

### Question ###
What engine is used by Colin Bennett Racing with an 811 chassis?

### Accurate SQL ###

SELECT engine FROM table_name_48 WHERE entrant = "colin bennett racing" AND chassis = "811"