Top Secret V12 Toyota Supra Twin Turbo at the Tokyo Auto Salon 2009. The V12 engine comes from a Toyota Century; a Japanese market luxury sedan with a V12 5.0L 1GZ-FE engine which only delivers 276hp.
However with 1.2 bar of boost and dual HKS GT2540 turbochargers and an ARC Intercooler yields 950+ hp. It requires the use of 2 V-Pro HKS F-Con engine management systems to manage all 12 cylinders (one for each bank as the V-Pro HKS F-Con can only manage 8 cylinders).
It uses the factory JZA80 6 Speed gearbox with an ORC Clutch and Cusco 1.5 way Limited Slip Differential to deliver the power to the pavement via 19 inch Volk GT-F rims wrapped in Bridgestone Potenza RE050A tires. Suspension is completed using Top Secret coilovers with a Roberuta Cup Kit and stopping this monster is aided by GReddy GREX 8-Piston 380mm front / 350mm rear brakes. Finally the styling is achieved with Top Secret's Super G-Force Wangan widebody kit, Carbon Aero bonnet, a GT sized rear wing and Ganador mirrors with LED.
With all the custom work this car is valued above $500,000!