I've been having trouble with what I thought was a broken wheel bearing for a long time. I took the car in for a service, but Mazda couldn't find anything wrong with it. They blamed it on the V-shaped wheel. I wasn't sure, but the noise was so bad that I thought about leaving.
After doing a lot of study, I took the plunge the other day and put a pair of Matador tyres on the front. WOW, what a change! The car is much quieter now, and the only noise I hear is from the two rear tyres I didn't replace. I'll do that next month.
Go to Tyre Reviews and read the Matador excellent reviews there.