one of only two in the world. Overall 65% of the vehicle's total body mass is CFRP material while the remaining 35% is aluminum. Manufacturer data indicates that the use of CFRP saves over equivalent aluminum materials. An electric power steering rack with a 14.3:1 gear ratio is used. The front suspension utilises a double-wishbone arrangement and there is a multi-link arrangement at the rear with coil-over dampers at all wheels. The dampers are a monotube design, each with a remote fluid reservoir that includes an expanding and contracting bellows: a purely mechanical system. The LFA further features six-piston front and four-piston rear Brembo monobloc brake calipers with front and rear carbon ceramic discs controlled by Toyota's Electronically Controlled Brake-by-wire system. Forged 20-inch BBS wheels fitted with front and rear Bridgestone next-generation Potenza tyres are standard. The LFA is equipped with a three-mode Vehicle Dynamics Integrated Management (VDIM) stability control system with Sport setting. To maintain a near-ideal weight distribution, a rear transaxle is used, in addition to the mounting of the fuel tank ahead of the rear axle and the radiators at the rear. The windshield washer fluid reservoir is mounted in the center next to the fuel tank to improve further the center of weight. Overall 48% of the LFA's mass is distributed along with the front wheels with 52% at the rear. The fuel tank straddles the exhaust system keeping weight centered along the left-right axis. The engine is connected to the transaxle via a rigid carbon-fibre torque tube which the exhaust system runs directly below. This stacked driveshaft and exhaust arrangement decreases the width of the centre tunnel allowing for centrally located seating. Exterior The LFA has an overall length of , while its wheelbase measures , with a height of and width of . Compared to the prior 2007–2008 concepts, the production model is nearly longer, with identical width, height, and nearly same wheelbase dimensions. The exterior design of the LF-A concepts and the final production model was the work of car stylists led by Lexus Design general manager Kengo Matsumoto. The overall design ethos was based on the principle of form follows function, with aesthetics secondary to aerodynamics and operation. The LFA's body features sharp edges and cutoffs for improved aerodynamic performance, made possible by the carbon fiber body. The body was designed with an emphasis on downforce. There are air scoops located over