The much-anticipated Detroit Auto Show isn't the only event on gearheads' calendars in January. Japan will be hosting its annual Tokyo Auto Salon at the Makuhari Messe next month where a number of modified and tuned cars will be on display. Ahead of the event, Mazda has revealed two modified versions of its popular MX-5 roadster which will debut at the show. First up is the RF Custom Style based on the new restyled fastback model, which has a 2-liter Skyactiv engine producing 155 horsepower and 150 lb-ft of torque.

The modified MX-5 has had a few style changes, including a low-slung front splitter and blacked-out front, rear and side skirts that make it appear more aggressive. The interior has also been fitted with an aluminum pedal set and the trim has been coated with Alcantara on the door panels and center console. Suspension is now height adjustable, while a strut tower brace will offer more rigidity along with a ticker sway bar. Completing the package is a new sports muffler for the exhaust. The second MX-5 to debut at the show will be what Mazda is dubbing the 'Classic Red.'

As much as we would could try to make the Classic Red sound more exciting, it is precisely what it says on the tin: a red Mazda MX-5 soft top. The Classic Red will appeal to long-time fans of the Miata, however, because it's based on the original 1990 model, sporting the same solid shade of red that was available from the manufacturer in one of three color choices at the time. Other than the retro paint job, the Classic Red remains a standard MX-5. The Classic Red is likely to be a one-off special edition, but Mazda hasn't detailed plans to bring it or the Custom RF to the US. Would you like to see them make it stateside?