Why is my Rover 75 subject to the London T-charge?

I have a Rover 75, which I have registered with the French authorities to get my diesel scale for travel to Paris. They put me in the Class 4 category. However, when similarly trying to register with...

Considering the diesel backlash, should I buy a diesel Jaguar X Type?

I'm currently working overseas, but upon my return to the UK next year I plan to buy myself a nice 2008/2009 diesel Jaguar X Type. I owned one of these when I was last back in the UK and it was fantastic....