The Top Secret Supra project is intended to present the Supra as the kind of supercar some feel Toyota should be selling. Its V12 powerplant is sourced from a Toyota Century (a Japanese market luxury sedan), and extra power beyond its stock 276 horses, many airflow aids have been added. These range from custom plenums and piping to dual HKS GT2540 turbochargers. All in all, the engine's output has been tuned somewhere north of 1,000 hp. To learn more information on the car check out this feature from Super Street Magazine.
[Source: Bespoke Ventures]