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_44515 ( "Year started" real, "Number of cars" real, "Current car" text, "Car #" text, "Website" text )

### Question ###
Which Year started is the highest one that has a Current car of arctic sun, and a Number of cars smaller than 1?

### Accurate SQL ###

SELECT MAX("Year started") FROM table_44515 WHERE "Current car" = 'arctic sun' AND "Number of cars" < '1'