For Group A rallying, Mazda made two main homolgation models. The JDM GTX model was released in 1990 and featured four-wheel drive, viscous limited-slip differentials and a turbocharged 1.8 L BP engine which produced 185 PS (182 hp). The JDM only GT-R model was released in 1992, featuring a number of enhancements over the GTX model: an aggressive front bumper, grill and bonnet vents, updated rear bumper, wheel flares, stiffer suspension and anti-roll bars with thicker cross members,…