Still seems like the long way around the horn to charge an EV with ICE. Actually that's how EVs are normally charged anyway. No matter how you analyze the mileage it still costs $40 bucks to do it that way and still not achieve a full charge.
Then there's the problem of flat towing without an appropriate tow bar in this case, too. I can tell you from personal experience that when things go sideways it ain't good for either vehicle or either driver.
As my analysis shows, the AMG still got 5 MPG combined better fuel economy dragging that Tesla. You can't get a tow for $40 either, if you're paying out of pocket.
No doubt running out of gas is an easier problem than running out of battery. It wasn't long ago the Mazda died coming back from the coast because the fuel pickup sometimes doesn't get the last 2 gallons of fuel in the 15 gallon tank (I haven't figured out what causes it to randomly do that). I hopped on my electric unicycle and rode the 2 miles to the tiny 1 pump gas station, got a gallon, and rode 2 miles back. Was up and running in 20 minutes.
If that had happened in an EV, well, I'd probably be calling a friend for a tow / charge. By the time they had gotten back to I-5, I'd have enough charge to get home. That assumes they have a car powerful enough to charge an EV at highway speeds. That AMG in the video is 450 horsepower, so it can spare the 100 horsepower it takes to drag the Tesla (normal horsepower to maintain speed on a highway is 15-20). You'd have to floor a Prius and it might maintain speed on a flat section of road.
I don't really care about the CO2 emission issue, because the best I could do to reduce it would be to drop dead, and even then you couldn't measure in the environment how much dropping dead reduced the CO2 concentration. Mostly I just like efficient things because they cost less, or give you more bang for the buck. EVs might cost 2-3 cents per mile in electricity, but a 30 MPG car will cost 10 cents (historic average). With gas prices how they are now, it's more like 15 cents per mile. I'd rather save money and use US energy than spend more and use foreign oil.
All that said, I don't have an EV yet because I don't need more cars. I've got a company issued Mazda CX-5 (unlimited personal use including gas), a Dodge Ram 2500 Cummins, an Acura TSX, a Chevy S-10 ZR2, and a couple Honda CBR600s. Only got the 1 wife, so that's too many vehicles.