I am getting ready to put some new tires on my C. Was going to get the Bridgestone Ecopia 422's but since they are out of production will look at the 422 Plus. Not too many reviews on them so far, are the Pluses as quiet as the 422's? Noise is my main concern, still have the Turanzas on the car which are driving me crazy with the noise they produce.
I really have yet to drive much on them, only maybe 100 miles. But mpg seems to be the same. Maybe slightly higher, without trying. I was getting about 55 mpg average on the stock Bridgestones.
You can see a few threads here talking about Ecopias. giving it a good rating cos of its high thread rating, low noise, and affordability