How do I check the EU exhaust rating of a car I want to buy?

I have been offered a second-hand Volvo V90. The dealer says they cannot confirm its EU exhaust rating but has given me its VIN to check. How do I do that?

Why doesn't the start-stop function in my car work sometimes?

My Volvo V90's start-stop facility frequently refuses to work. Is this a common fault?

What suspension option should I choose for a new Volvo V90?

I am considering buying a new Volvo V90. I have read numerous reviews and had a test drive. I note that in addition to the standard suspension set-up there are two (cost) options available - rear self-levelling...