Is there a way of reducing road noise on a Chevrolet Volt?

I bought a Chevrolet Volt a couple of weeks ago and am very pleased with the car in every way, apart from one - the road noise at high speeds (over 50mph) is surprisingly louder than I would have expected,...

Buying a hybrid. Which one?

I would like to buy a new Hybrid. Should it be a Jazz, Insight or Prius? When will the plug in Prius be on sale and is it worth the wait? Space is not important. The Honda CRZ is a non starter as it's...