I found this drink cup, mug, whatever at WalMart. It fits the cup holders perfectly on my 2012. It has a finger with a rubber stopper on it that seals the hole when you twist the top plate closed. The Contigo Twistseal. Almost 3" in Dia. and 9" tall, holds 16 oz.

Spill proof as long as you use it right. Nothing is totally idiot proof as we've seen many times over the years.

When you put it in the cupholder it engages the rubber in the cupholder and is held securely.

 

I guess if you just have to drink while you're driving, that's probably as safe a way as any!
Personally, I have never carried a beverage of any sort into any of my vehicles.

Dwayne

 

I used to drive 45 miles one way to work. My Corvette has two cupholders sized perfect for a can. On long trips I always kept a small cooler in the passenger seat. With a briefcase full of CD's.