2012 Mercedes-Benz A250 AMG Sport It’s official: Mercedes-Benz will add an AMG version to its A-class lineup, and it will be called the A45 AMG. It will feature a turbocharged 2.0-liter inline-four, internally called M133, producing around 350 hp; maximum torque will be more than 295 lb-ft. The engine, fitted with a single BorgWarner-sourced twin-scroll [...]