@sethvargo I was thinking of a more modular approach for test-kitchen to include the drivers and only activate them upon configuration file (while having a few more drivers in the default test-kitchen).  

It could be said that if the user did ```bundle install --without integration``` they would omit the *LXC* and *EC2* Driver.  But not every user uses *--without*

P.S. I was also looking at the long-term in grand-scheme of things, just thinking how can we provide a little more defaults so more people are covered out of the box.