Toyota has unveiled a brand new Mark X G Sports concept, at the Tokyo Auto Salon. The concept will boast a new front bumper, revised hood, a sport grille, and LED daytime lights for the front end. At the back the Japanese automaker has added a new bumper with an integrated diffuser, a four tailpipe exhaust system and a trunk mounted spoiler. There will be fender vents, new side skirts and 20-inch wheels.