Even though environmental dangers of cars do infrequently appear in the news (so it could be argued people already know about it) I think a warning is still needed because the show relentlessly asserts it is great to simply have an infantile, unthinking, unquestioning, carefree, impulsive enthusiasm for cars. By appealing to primitive impulses (using extremely expensive and expertly made productions) the show bypasses the rational frontal cortex of the brain, a clear environmental warning with each show would balance this. In my view Top Gear is playing a strategic role in destroying the health of the planet in a totally irresponsible and seemingly highly calculated way, exploiting and dragging down the (formerly) impeccable reputation of the BBC.
That's my opinion. I'm not the slightest bit interested in suing the BBC myself, I'm simply hoping to alert them to this danger. Also please note I am not suggesting in any way the content of the show should be changed, only that it needs to be accompanied by a strong environmental warning. A similar message has been sent to the BBC.
I'm not against cars, I'm against addiction to the power of cars, both at the individual level and at the societal level, in terms of urban and rural design for instance which makes it virtually impossible to do anything without transportation. The cure for car addiction would in my opinion consist largely of much greater self-reliance for homesteads, suburbs, cities and regions, still supported by transportation and trade with other regions. I don't really see this as something government can or should force on people, they'll have to decide to do this for themselves if it's going to happen.
If car addiction can be brought mostly under control we would not need to try to preserve our overconsumption by trying to invent new "green" vehicles we can keep abusing at the same rates, as non-addicted car usage levels would probably be at an environmentally safe level. It would also mean enough petrol for thousands of years, many say we may never come up with a more efficient energy source, better to conserve it until we do.
A common feature of addictions is they are "sticky", users perceive that other significant people are doing it, addiction is "social" (D Thompson. The Fix. 2013) this is how shows like "Top Gear" contribute strategically to addiction to the power of cars.