Alpina trotted out its upcoming B6 Gran Coupe for some Spring time testing and we’ve caught it fitted with Alpina front lip, trunk wing, wheels and exhaust system. The aero parts remain unpainted and no Alpina rear diffuser/bumper has yet been installed.

For an idea of what the specs may be for the B6 Gran Coupe, the 2013 Alpina B6 Coupe features 540hp / 730nm (538 lb-ft) torque, with a top speed of 334 km/h - based on BMW 4.4L V8 motor. How do those specs stack up against the M6 in the performance department? Check out the Sport Auto comparo results below.

3D Design presents the F06 6 Series Gran Coupe. The F06 program consists of a front lip spoiler manufactured in urethane with carbon fiber accents, a full carbon fiber rear diffuser, and a more aggressive urethane trunk spoiler.

The front lip and rear diffuser are compatible with all F06/F12/F13 M-sport models, but the trunk spoiler only fits the Gran Coupe and Coupe (F06/F13)

3101-20611 Front Lip Spoiler Set (Urethane + CFRP)
3108-20621 Rear Diffuser (CFRP)
3109-20611 Trunk Spoiler (Urethane)

Also making its debut at the 2013 Geneva show is the Geneva 2013: AC Schnitzer 6 Series Gran Coupe M Sport

The 6 Series Gran Coupe M Sport gets a center bumper metal grille, carbon fiber front lip, carbon fiber rear diffuser, and exhaust tail pipes.

Interior bits include painted trim, ACS iDrive knob, hand brake handle, shift knob, and aluminum pedals.

Follow our full 2013 Geneva show coverage updates at BIMMERPOST.com

Hamann has taken the sleek and classy 6 Series Gran Coupe and added what the tuning company feels are some necessary cosmetic changes for some added aggression. Can’t say that it’s an improvement, but it’s certainly a change.

The Hamann BMW 6 Series Gran Coupe comes with a full body kit including a full front bumper with custom grille and LED DRLs, side skirts, full rear bumper with vents for cooling the brakes, a trunk spoiler, roof spoiler, rear diffuser, and a wild carbon fiber hood.

It rides on 21-inch aluminum alloy wheels and 30-mm lowered suspension system.

Painted in the style of a BMW Art car, this BMW 6 Series Gran Coupe (650i) M Sport is currently on display as part of an art exhibition titled “The Road is your Easl” in Abu Dhabi Motors’ showroom in Umm Al Nar, which features art by internationally renowned artists such from the likes of Andy Warhol and Ki Soo Kwon. The show runs until December 6th, 2012. via BMW Middle East

Have a gander at the first images of the AC Schnitzer 6 Series M Sport Package aero kit, consisting of a carbon fiber front spoiler lip and rear diffuser which each attach to the OEM 6 Series M Sport aero parts.

Have a peek at the first completely uncovered 2014 M6 Gran Coupe, captured by a daring photographer in a BMW factory. It may only be a side view, but there’s no doubt this is the M6 Gran Coupe.

Its blue M brakes (a new M signature going forward), sideskirts, and mirrors are all evidence this is the M6 Gran Coupe.

What is also seen for the first time on this car are the production wheels, a completely new BMW wheel design.

The latest outing by the upcoming 2014 M6 Gran Coupe (M6GC) leaves little else to be revealed. Not that there were many surprises to be revealed in the first place, as the M6GC was expected to share bodywork and most everything else with the F13 Coupe and F12 Convertible variants, but this prototype shows the sculpted roof (carbon fiber underneath the camouflage, just like 6 Series Coupe) and a set of carbon ceramic brakes for the first time.

This is also the first M6GC prototype we have seen sporting the M6 coupe and convertible’s double-slat kidney grilles with M6 badge.

The M6 Gran Coupe will arrive as a 2014 model year and see its auto show debut at the 2013 Detroit NAIAS in January 2013 or the 2013 … CONTINUED