Amazonhas their 2nd Gen Echo Auto for $39.99 (regularly $49.99) with Free Shipping for a limited time.

The Echo Auto brings Amazon Alexa into your car. Ask Alexa to play music, continue your Audible audiobook, check your calendar, find nearby businesses, or make calls. With 5y microphones, Echo Auto even hears you over our AC and road noise. Echo Auto starts up in seconds, works through your car speakers, and pairs with your existing smartphone plan. The new design is slimmer and sleeker.