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_19643196_1 (year VARCHAR, transmission VARCHAR, model VARCHAR)

### Question ###
What year had an Allison B400R transmission and a model of BRT?

### Accurate SQL ###

SELECT year FROM table_19643196_1 WHERE transmission = "Allison B400R" AND model = "BRT"