Hyundai’s successful Genesis Coupe is entering the 2011 model year in the U.S. with some minor interior refinements, but most importantly, a new hotter model called the “3.8 R-Spec”.

Previously available only in conjunction with the 210HP 2.0-liter turbocharged four-cylinder engine, the R-Spec trim level can now be ordered with the 3.8-liter V6 engine that delivers 306-horsepower and 266 lb.-ft. of torque on regular unleaded, hooked up exclusively to a six-speed manual gearbox.

The R-Spec treatment does away with some non-essential comfort features such as automatic headlights, cruise control and certain trim bits adding a track-tuned, stiffer suspension, 19-inch alloys shod in Bridgestone Potenza tires, limited slip differential and Brembo brakes with 13.4-inch front discs and 13.0-inch rear discs. Sportier seats and special badging are also part of the package.

Two new special editions named Domino and Echo that both play on black and white color schemes are joining Kia’s UK-market lineup. The Domino special edition is available on the Picanto and Rio superminis, while the Echo is offered on the Soul crossover.

Starting with Kia’s supermini models, the Picanto Domino is motivated by a 1.1-litre petrol engine hooked up to either a manual or automatic transmission, while the Rio Domino is available with a 1.4-litre petrol or 1.5-litre CRDi diesel engine. Both the Rio and Picanto Domino editions are available in white or optional black metallic paint. Buyers can also opt for a contrasting black or white stripe covering the bumpers, mirrors and door handles.

The Vorsteiner GTRS3 is what happens when you put a lot of carbon fiber, an M3 and some Porsche tail badges in a blender with a dollop of Venom’s symbiote as your solvent. Result: a stealthy post-apocalyptic performance milkshake on wheels.

With Alfa Romeo midway through its centenary year, Italian coachbuilder Zagato is adding to the automaker’s centenary celebrations with the world premiere of a new concept sports car at this month’s 2010 Villa D’Este Concorso d’Eleganza.

Marking the return of the famous GTO badge, which stands for “Gran Turismo Omologata”, Ferrari today unveiled the 599 GTO, a limited edition supercar that’s inspired by the track-only 599XX prototype.

During last week’s press days of the 2010 New York International Auto Show, Kia took the veils off the all-new 2011 Optima mid-size sedan (click here for details) that will carry the same name in all markets outside Korea.

While Audi execs are whistling dixie about the possibility of the new RS5 Coupe making its way on this side of the Atlantic, Automobile magazine is reporting that the 450-horsepower strong stallion from Ingolstadt is likely to arrive in the U.S. by summer of 2011.

For the first ever, Subaru is offering its top-of-the-line Impreza WRX STI in two body styles with the return of the four-door saloon model that’s aimed directly at the Mitsubishi Lancer EVO X.

Hyundai’s big reveal for the New York Auto Show was the all-new 2011 Sonata Hybrid that will compete head-on with the likes of the Toyota Camry Hybrid and Ford Fusion Hybrid when it arrives in U.S. showrooms later this year.

As a possible precursor of things to come, Toyota displayed a customized version of the all-new 2011 Scion iQ prepared by Five Axis at the New York International Auto Show.