The Acura TSX A-Spec Concept introduced at the 2005 SEMA show is a one-off masterpiece. It rides on 19-inch rims and Pirelli tires hiding a set of oversized Brembo brakes. New front and rear fascias and a center exhaust outlet at the rear spice up the design, while underbody diffusers increase grip and aerodynamics. A carbon-kevlar spoiler provides down force, while A-Spec springs and shocks are set at all four corners to keep the TSX glued to the road. Inside, front occupants are held tight by a set of Recaro seats.