Blighty's system of taxes for higher-emissions vehicles have some environmental activists calling for a new level of taxes for such vehicles as the blown Range Rover. Currently, vehicles fall into bands A through G. The called-for "H" band would propose and additional five-hundred quid tax, hopefully screwing up the vehicles' resale value and thus making them less attractive to well-heeld Britons. We're not entirely sure what we think. One hand, we support the idea. On the other hand it's emblematic of the massive panic about carbon-dioxide and vehicles' role in it in the UK. And well, panicking Britons are especially irksome. [What Car?]