It was announced and shown at SDCC 2014 that there will be a Flux Capacitor USB Car Charger. It was originally an April Fools joke done by ThinkGeek, but now it's going to be real. The only issue? You have to wait till September to get your hands on it. The only way to stay in the loop is to sign up for email updates via their website.
This is the tech specs and product information:
Flux Capacitor Car Charger
A ThinkGeek creation and exclusive!
Officially-licensed Back to the Future merchandise.
Compatible with anything that charges via USB (iPhones, smartphones, iPads, tablets, GPSes, etc.) as long as you have the cable.
Two USB charging ports, which each provide 2.1 Amps.
On/Off switch for Flux lighting effect.
Flux Capacitor fluxes in its famous light pattern as it charges your goodies.
Flexible arm pivots up and down so you can better customize it to best fit your vehicle's power port placement.
Includes: Flux Capacitor unit with 2 USB ports and integrated 12V vehicle cigarette lighter adapter.
Flux Capacitor unit: 2.5" x 3" x 1"
Power Plug: extends 3.5" out the back of the unit.