I've been practicing scales in my car at lunch time and I think a looper would really help make it more interesting and musical.  What do you all recommend that would work portable like that...like maybe an external speaker, or headphones out?  I really don't want a pile of cords all over the car to power it and plug in.  But maybe I have no choice...
 
Just need something simple, really.

No doubt there are better and newer options than this, but none cheaper. Sitting in my desk drawer unused and it’s yours free if you want it. Works off CD content. Battery powered, also has AC adapter. Manual too I’m pretty sure.

http://www.guitarcenter.c...ainer-1274115029107.gc

Absolutely, I'd love to take you up on that.  Much appreciated.  

this:
https://www.amazon.com/TC-Electronic-Ditto-Looper-Effects/dp/B00AZUAORE?tag=guitarfcom-20
 

this,
gives you even MORE options:
 
https://www.amazon.com/TC-Electronic-Looper-Effects-960804001/dp/B00KRO8UYC/ref=lp_486430011_1_19?s=musical-instruments&ie=UTF8&qid=1509639768&sr=1-19
 
 

Bats - the problem with the TC is the power adapter.  There doesn't appear to be a battery powered version. 
 
If they don't make something perfect for my situation, I have every intention on getting the TC and trying to power it through the 12V auto accessory, which will require some kind of adapter to get me from the wall-wart to the accessory connector.   
 
In fact...I even thought about running the output to an Aux audio in my wife's car to get a pretty nice sound out of the car's audio system.  But..that's a bunch of cables.  I'm trying to see if there's something more portable, battery powered, before I go all in like that.  

If you're just looking for something to play along with, I'd suggest getting a Blackstar Fly and a 1/8" to 1/8" cable to connect your phone to the battery-powered amp. I have an Android phone and use several apps (Grooves Arranger, Chordbot, Drumgenius and Loopz at the moment). There are also tab apps like Songsterr.
 
Fly 3: https://www.blackstaramps.com/uk/ranges/fly
 

I wanna know what kind of car you have that lets you practice guitar in there.

I am checking out all of these suggestions.  Everything is so close, but not quite right.  Really digging that Blackstar Fly for the audio solution..
 

fret_man
I wanna know what kind of car you have that lets you practice guitar in there.

Just a good ole economy Hyundai, in the back seat.  Sit in the middle and get to work.  I do the same thing in my GMC pickup.  But I'm also a little dude, so I don't need a lot of space.  I'm barely 5'6" tall.  Fat fingers.  Biology never suggested I play guitar.