Mazda RX-8 Genuine Interior Accessories. Genuine Mazda RX-8 Accessories and Mazda RX-8 Parts offer the style, comfort, quality and satisfaction that make driving a Mazda RX-8 even more rewarding. Designed and guaranteed to fit your Mazda RX-8 perfectly inside and out, they are the only accessories built to the same quality standards as your Mazda RX-8.