By luck, Coming back from California to Ohio, I found out a family cooler from Walmart fits perfectly in the Frunk. The ice actually lasted a whole day of driving in 90 degree weather. 
Family cooler from walmart  $15
12 pk of Killians (bottles)         $17
The look on my buddies face when I pop my "Frunk" and hand him a cold one...
Priceless!!!   
  
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