If you're looking for a specific suggestion, for whites the only one I've found I liked was Fish Eye Pinot Grigio, and I actually like it quite a bit.

I haven't really found any boxed reds that I would buy again but Black Box cabernet was the least objectionable of the ones I tried.

"Good" wine is the one you like.

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2002 E320 4-Matic
2008 Subaru Outback
2009 Subaru Forester