The SQ5 performance crossover SUV is the first Audi S model vehicle to feature a diesel engine. The primary power plant is a 3.0 litre (2967 cc), twin turbocharged V6 engine coupled to an 8-speed Tiptronic transmission, developing 313 PS at 3,900–4,500 rpm, and 650 Nm of torque at 1,450–2,800 rpm. It also features Audi's signature quattro permanent all-wheel drive system with torque vectoring transfer. Sport suspension lowers the vehicle body by and 20-inch 5 parallel-spoke wheels with 255/45 tires are fitted as standard, with the option of upgrading to 21-inch wheels. Other features of the SQ5 are black front brake callipers with Audi 'S' badges, an optional Audi drive select system, a platinum-grey single-frame grille with galvanized double bars, two SQ5 unique body colours (Estoril Blue or Panther Black), optional lunar silver headlining, Pearl Nappa leather/Alcantara power-adjustable sport seats with optional leather upholstery in a choice of four colours, brushed aluminium inlays with optional Carbon Atlas, Piano finish or Aluminium/Beaufort wood trim panels.