Being used to Simbin titles I was disappointed that there was no technical information on the cars in the showroom (or did I miss something?) For those interested in the tech spec, it can be found here http://www.brasileirodemarcas.com.br...o#.VHy7r9KsWSo Translated TIRES Pirelli 285/645 Aro 18 . ENGINE 2.3 -liter, aluminum head , fuel supply by electronic injection and dry sump Motec . BRAKE PADS ECOPADS - asbestos-free formulation and automatic mixers. BRAKES Ventilated discs Fremax , English calipers AP Racing , special competition, with six-piston front and four at the rear. STEERING The rack and pinion with hydraulic drive . WHEELS OZ Racing 11 x 18 inches. TRANSMISSION Electronic Xtrac . Sequential drive 6 forward gears and one reverse Magneti Marelli 's . WEIGHT 1.100 Kg without the pilot SUSPENSION Pair of front springs - 300N / mm , 120mm x 50mm (load, height and internal diameter) . Pair of rear springs - 80N / mm , 140mm x 50mm . Unique and unalterable stabilizer bar . POWER 300 hp . FINISH Finished with composite materials. BODY Factory original. So while it is very unusual for a racing car to have fixed spring rates and roll bar, this is what the regulations stipulate.