UK versions of the Subaru Impreza will be powered by an all new 4-cylinder 1.6 litre Boxer petrol engine and will be available with either a new five-speed manual transmission or Subaru's Lineartronic CVT. With either transmission choice, the 2012 Impreza delivers significantly improved fuel economy over the car it replaces.

Subaru has further refined its CVT so that for the new Subaru Impreza a lighter and more compact unit delivers smooth, linear acceleration, closer to a conventional automatic transmission while still delivering the efficiency benefits of a CVT. Higher specification Subaru Impreza models will feature CVT with a 6-speed manual, operated by steering wheel paddle shifters.

New Subaru Impreza will benefit from improved ride and handling courtesy of strengthened suspension components in front and rear and new hydraulic engine mounts to damp out vibration. The new model keeps its double-wishbone rear suspension which now features new components to improve ride quality and stability. A stiffer body structure, when combined with the new suspension, have also reduced levels of noise, vibration, and harshness (NVH).