The most reckless drivers mostly can be found in cars. So I guess it would be reasonable to make it a kind of an achievement to be able to use a car (minimum amount of hours played, being a Patron, ...) in order to protect the reputable players.
However, not too long ago, TMP raised the speed limit to 150 kph on Sim2 and ProMods ... totally unreasonable for this game and for any serious truck driver. So if TMP enforces speeding up to 150 kph (and also removed most of the perma bans), why should they do anything against these annoying kids in cars ramming everyone off the road?
So I'm in favor of this suggestion, but it probably will be rejected by TMP anyway, because they want to attract as many new players as possible, even if they cause trouble.
My forecast is that TMP will allow even more car brands in the near future to make it a truck, bus, and car driving simulation.