New Features In MVC5.

1.ASP.NET Web API Template: ASP.NET Web API is a framework for building web APIs on top of the .NET Framework.HTTP is not just for serving up web pages. It is also a powerful platform for building APIs that expose services and data. HTTP is simple, flexible, and ubiquitous. WEB-API 2 is available in MVC5.
2.Asp.Net Identity: ASP.NET Identity is the new membership system for building ASP.NET web applications. ASP.NET Identity allows you to add login features to your application and makes it easy to customize data about the logged in user.
3.Bootstrap in the MVC 5 templates: Bootstrap makes you easy design. MVC 5 contains Bootstrap 3.0.
4.New feature to create an ASP.NET MVC 5 App with Facebook Signin.
5.New feature to create an ASP.NET MVC 5 App with Google OAuth2 and OpenID Signin.
6.Authentication Filters
7.Filter overrides
8.And with some MVC4 features
Empty Template,
Internate Application Template,
Intranet Application Template,
Mobile Project Template,
Single Page Application Template.