THE TESLA ROAD TRIP - Things get tense as we argue about directions, hair loss, driving, supercharger stations, and naps

Video producers Graham and Will are on an epic road trip from San Francisco to New York City.

In episode 4 of a seven part series, Graham and Will begin to drive each other crazy. It starts right away, with an argument at the first Tesla Supercharger stop of the day. They have to separate briefly at their second stop. As things get more and more tense, Graham settles in for a long nap while Will pushes forward to Omaha and Warren Buffett's house.

Day 5: 471 miles

WATCH: A perfect pit stop at Warren Buffett's favorite steakhouse in Omaha.

Day 6: 344 miles

WATCH: "I summon you!" - the car drives itself across a parking lot.

Day 7: 469 miles

WATCH: Things get stressful as the Model X hits 1% battery power.

CLICK HERE TO WATCH THE ENTIRE SERIES.