Due to a recent tragic accident involving a friend, I am looking for a safe car for my wife and 11 month old daughter. I am pretty wellinformed on cars, but don't know squat about Volvos, other than they are known for safety. Ideally, I would prefer a diesel wagon. I hear, though, that with recent changes in diesel fule standards, that older diesel cars not designed to run on the cleaner fuel will have problems. I'm actually hoping to use biodiesel, but that's another story. Could someone please shed some light on the model naming convention that Volvo uses? I know with Mercedes, when I see a "D" in the name, it's a diesel. I'm scrolling through hundreds of ads for Volvos, and need to narrow my search to wagons only, and prefarably diesel, and a real bonus would be a manual transmission. Also, what kind of gas mileage are Volvo wagaons known for? Thanks for any advice you can give.