The SSC Tuatara has officially been crowned the "fastest production vehicle" EVER ... this after the supercar hit a staggering 331 mph on a Nevada highway earlier this month!
The rocket-ship-on-wheels took off on Oct. 10 on State Route 160 just outside of Las Vegas ... with its sights set on crushing a world record.
And, after a week and a half of analyzing data and confirming times ... officials say the car did exactly that.
SSC says its 1,750hp Tuatara ran two test runs to pull off the accomplishment ... hitting 301.07 mph one way and then 331.