There are very few racing series left that harken back to true production based machines. Even WTCC and V8 supercars used highly modified vehicles. Trick motors, trannys, diffs and tons of body work. The US based Continental Tire series however, is one of the few true production based series left. The GS class consisting of sportscars with large displacement 6 or 8 cylinder engines, or boosted 4 cylinders. Including the Chevlrolet Camaro, Porsche 911s, Subaru Impreza WRX STIs, Ford Mustangs, BMW M3s, and Aston Martin Vantages. The ST class supports smaller displacement 4 or 6 cylinder coupes, sedans and roadsters. This includes Honda Civics, Mazda Miatas, Hyundai GenesisPorsche Boxsters, Mazda RX-8s, BMW 330is, VW Golfs, Mazda Mazdaspeed3s, Kia Forte Koups, and BMW 128is, I’d love to see the FIA fund and promote a true worldwide showroom stock series. Imagine adding Audi S5s and S3s, Mercedes-Benz C63s and A-Classes, Mitsubishi EVOs, Lexus RC-Fs and ISs, Renault Meganes, Lotus Evoras, Jaguar F-Types. An abundance of full works teams battling it out on big name tracks? It would bring back the win on Sunday sell on Monday sales pitches.