Return/output Non-Existing Row

I have two tables:

I am retrieving all car measurements and get a result set that currently look like this:

When there are no car measurements for BMW335 on 2013-06-21 (no row in the db), I’d still like to have an empty row returned so that the result would like this:

How I can get this result back from my MSSQL 2008 database? Or should I be looking at doing this at PHP/Yii level?

The current query look like this: