Created by Porsche to fill the gap between the 394hp (400PS) 4S and 493hp (500PS) Turbo Panamera models, the GTS comes with a mildly tuned naturally-aspirated 4.8-liter V8 engine delivering 424hp (430PS) and upgraded chassis components and looks.

The German tuner’s engineers started off with the V8 engine that gains a software upgrade and a three-stage adjustable sports exhaust system that boost output to 501-horsepower (508PS).

A new electronic module allows the driver to drop the Panamera GTS’s height-adjustable suspension by an additional 30mm, while the car now rides on massive 22-inch alloys wrapped in 265/30-22 tires at the front axle and 295/25-22 at the rear.

The exterior is then dressed in a new body kit that includes a restyled front bumper with an apron, headlamp surrounds, side skirts, new rear bumper trim, a rear apron housing a diffuser and tail light décor.

For the final touch, Anderson Germany takes on the interior, which is redone in a combination of leather and Alcantara with white diamond stitching.

Other upgrades include the white carbon trim package, new entry sills on the doors, footwell lighting in the front and the back with a dimming function and a high-end sound system with amplifier, subwoofer and a number of speakers.

Porsche has completed a deal with the Martini brand, represented by Bacardi & Company Limited, to offer the racing livery on the production version of the 918 Spyder that goes on sale in September of 2013 at a starting price of €645,000 (about US$789,900 at today’s exchange rates), excluding taxes and country-specific charges.

The two companies have a long history together as in 1971, a Porsche 917 finished first in the legendary endurance race in Le Mans with the support of Martini, which eventually became the official partner of the Porsche factory racing team between 1973 and 1978.

The 918 Spyder features a mid-mounted 4.6-liter V8 internal combustion engine with electric drives at the rear and front axles, which produce a total system output of around 762hp (770PS).

Among other highlights are the car’s fully variable aerodynamics, adaptive rear axle steering and “top pipes” exhaust system which routes the pipes upwards.

There’s something inexplicably cool about the iconic baby blue and orange paint scheme of the Gulf Oil-sponsored racers from the 1960s and 1970s (before the company went down in the 1980s), which provided the inspiration for this previous generation Porsche 911 from German aftermarket firm Oxigin.

The racy-looking 997 coupe is covered in a foil wrap with the colors of the Gulf Oil team, which also extend to the new deep-dish alloy wheels.

Oxigin said the demonstrator car was created to display its work. The German tuner did not provide any additional information on the 911.

The new GT AERO 2 styling kit builds on the German firm’s GT AERO 1 pack that already includes front and rear bumpers, plus a roof spoiler and which was introduced at the beginning of 2012, adding wheel arch extensions with matching side stills.

A new set of forged alloy wheels in a dark grey shade measuring 22 inches in diameter complete the exterior makeover.

Gemballa says the GT Aero 2 is offered as a complete kit or as separate parts that can be applied to Porsche Cayenne 958’s already fitted with the company’s GT Aero 1 package.