Welcome on the website of your Chrysler, Dodge, FIAT, Jeep, and Ram dealer in Mascouche! Serving Lanaudière better than ever thanks to our newly-renovated facility and the arrival of the FIAT banner, Trois-Diamants Autos (1987) Ltée is proud to offer a comprehensive range of automotive products and services in Mascouche, just minutes from Terrebonne, Repentigny, Laval and Montreal. more... See more text