“the apex of internal combustion engines means they’re doing more than just propelling a vehicle around roads and highways. They’d also be air purifiers, removing CO2 as they go.”

which sounds amazing, but is followed by 0 facts or information on how that might work.

They are putting Carbon Capture into some concept cars and a race car [1]. Some more info in the system at [2]. I don't see any benefit for this technology being in a car vs at a stationary large scale facility.

[1] https://www.hagerty.com/media/news/future-mazdas-to-capture-...

[2] https://www.carboncapturejournal.com/news/mazda-unveils-mobi...

This is annoying marketing bs that the motor press has been touting for decades with every new generation of efficient engines. An ICE (that's not running on H2) always generates CO2.

If it did the reverse, it would be a Fischer-Tropsch reactor. /s