CL63 AMG and CL65 AMG models get new styling touches to the front and back. CL65 AMG distinguished by sportier diffuser with integrated oval-piped quad-exhaust.

Some official images of the upcoming CL63 AMG and CL65 AMG face-lifted models have been leaked.

Here we see the CL63 AMG distinguishing itself from its more powerful sibling by sporting a quad-exhaust with rectangular pipes (instead of oval-shaped ones) and a plainer-looking rear diffuser. It's also fitted with 19-inch wheels compared to the 20-inch rims on the brown-colored CL65. The CL65's quad-exhaust oval pipes are also complimented by a metallic panel in the middle of the rear diffuser.

For the front, the models naturally seem to carry the same changes as in the facelifted CL-Class - with a new grille and restyled lights (with integrated LED daytime running lights) at the front and back.

The CL63 AMG sports the brand's new 5.5-liter, twin-turbo V8 with 544 PS (400 kW / 537 hp) and 800 Nm (590 lb-ft) of torque. The more powerful CL65 still comes with a V12 engine producing 630 PS (463 kW/621 hp) and 1,000 Nm (738 lb-ft) of torque.

We can expect the models to debut later this year.

Gallery: Mercedes CL65/ CL63 AMG images leaked