Riley Mazda is a Mazda dealer in Stamford CT with huge selection of Mazda models. Our new and used car dealership offers quality vehicles plus all the car service, parts and auto financing drivers from Norwalk, Danbury, Greenwich and Milford need. Whether you are looking for oil change, tire service, brake, battery service, parts and accessories, or other auto repair, our Service and Parts Center is the place to go. We are also here to help you decide your next auto needs, either between buying or leasing, trade in, buying pre-owned or certified pre-owned Mazda, or buying the latest Mazda cars.