Bestbuy offers Amazon - Echo Auto (2nd Gen) with Alexa Voice Assistant - Black for $24.99 (orig. $54.99) free shipping.

Product Description:
Hands-free Alexa accessory - Slim design that's easy to place in your car and 5-mic built-in so Alexa can hear you over music, A/C, or road noise. Includes a fast car charger to charge your phone on the go.