[freemint]

> What if you need to haul things while simultaneously carrying a family around?

Have one partner drive a sedan/wagon with the kids and another partner haul. A lot more economical too.

[rascul]

How is it more economical to drive the truck and car instead of just the truck?

[freemint]

Because you can drive such a truck https://preview.redd.it/jxpnmzv586e81.png?width=1024&auto=we... if you do not need to transport a family and a sedan and those two will weigh less and have better combined gas mileage than american larger truck. If you relax the assumption that you always transport both a family and a truck load you allow for more powerful trucks and still come out ahead.

In addition you do not need to waste gas if either capability goes unused and the mileage of transporting people won't depreciate the more expensive truck faster.