Should I sell my six year old Volvo XC60 and buy a petrol replacement?

I am seriously concerned with all this talk about a diesel backlash coming from the government and motoring press. I have a six year old Volvo XC60 and I'm really worried that it could be heavily devalued...

What's the most economic petrol car I can get to do 20,000 miles per year?

I currently drive a 2005 Volkswagen Golf Plus 2.0 TDI that has done 182,000 miles. What should I replace it with on a maximum budget of £12,000? I need a workhorse to do 20,000 miles a year (80 per cent...