Serious Engine Trouble---Aston Martin Vantage

I have reported serious engine trouble in a new 2014 Aston Martin V8 Vantage. After only 7,300 miles, I am advised by the Denver Aston Martin dealership that the car needs a "new engine"... I boughht the car new in January 2015 from the Aston Martin dealership in Washington, DC. The car has never been over 80 mph, never been in a rainstorm, always garaged and apparently, Aston Martin is unwilling to assist in the customer support of its vehicles. I am sorry but I believe this to be shameful on the part of Aston Martin.