Image Credit: Autotopia LA / YouTube.Custom show cars are often treated like priceless museum pieces, spending their lives under bright lights before returning to enclosed trailers. JF Launier's extraordinary Buick Riviera takes a completely different approach, proving that a championship-winning build can also be driven exactly as intended.Known as the "Rivision," the heavily modified Riviera has become one of the most recognizable custom cars of the modern era. It claimed the coveted Ridler Award in 2014 before earning additional recognition through appearances on Rust Valley Restorers and continued success on the show circuit.Despite an estimated value of around $3 million today, Launier has never been interested in preserving the car behind velvet ropes. It has seen burnouts, donuts, high-speed runs, track events, and plenty of road miles, making it one of the rarest examples of a true driver's show car.AdvertisementAdvertisementA recent feature by Autotopia LA pulled back the curtain on the incredible engineering and craftsmanship behind the project. The story revealed not only an astonishing level of fabrication but also the financial risks and determination required to bring the one-off machine to life.A $400 Riviera Became A World-Class CustomImage Credit: Autotopia LA / YouTube.The project began with what was essentially a worn-out 1963/64 Buick Riviera purchased for just $400. Launier deliberately started with a rough example because he knew almost every panel would eventually be reshaped or replaced during the transformation.Over roughly six years, the project consumed more than 22,000 hours of labor and approximately $300,000 of Launier's own money. As deadlines approached before the Detroit Autorama, he even remortgaged both his own home and his parents' house to secure the funding needed to complete the ambitious build.That enormous gamble paid off when the finished Rivision captured the prestigious Ridler Award in 2014, cementing its place among the greatest handcrafted customs ever built.Twin Turbos, Clever Packaging, And Nearly 900 Wheel HorsepowerImage Credit: Autotopia LA / YouTube.Under the hood sits a heavily modified 6.0-liter iron-block LS-based V8 built around a junkyard truck engine. Even before boost arrives, the engine produces roughly 500 horsepower thanks to its naturally aspirated configuration.AdvertisementAdvertisementTwo rear-mounted turbochargers running approximately 20 psi of boost elevate output dramatically. The combination has produced an impressive 894 horsepower at the wheels on a chassis dyno, giving the Riviera performance that rivals many modern supercars.The engineering is every bit as unusual as the power figures suggest. The engine is mounted nearly 11 inches behind the front axle for excellent weight distribution, while compressed intake air travels from the rear-mounted turbos through exposed piping inside the cabin before reaching the throttle body under the dashboard.Built Entirely By HandImage Credit: Autotopia LA / YouTube.Virtually every visible component on the Rivision was handcrafted without relying on modern CAD design, 3D scanning, or extensive CNC production. Launier shaped body panels using traditional metalworking techniques, creating proportions that blend classic Riviera styling with influences from the C2 Corvette and endurance racing machines.The custom touches extend far beyond the sheet metal. One-off billet wheels, mirrors, grille, taillights, door handles, hood straps, and countless interior components were individually designed and fabricated specifically for this build.AdvertisementAdvertisementPerhaps the most astonishing detail is that more than 2,000 fasteners were individually machined, polished, and modified so that almost no off-the-shelf hardware remained untouched. Even hidden areas beneath the car received concours-quality finishing simply because Launier believed every surface deserved the same attention.A Show Car That Refuses To Sit StillUnlike many award-winning customs that spend their lives protected from wear, the Rivision continues to be driven regularly. The car has accumulated more than 1,300 miles while competing in the Optima Ultimate Street Car Challenge, performing burnouts, and making spirited road trips.Launier has even pushed the car to 175 mph, although he admits that was enough to prove the point. During AutotopiaLA's drive, the twin-turbo Riviera demonstrated remarkable stability, responsive handling, and brutal acceleration despite riding barely a few inches above the pavement.That willingness to actually use the car is arguably what makes the Rivision so remarkable. It combines world-class craftsmanship with genuine performance, proving that one of the most valuable custom Buicks ever built was never intended to be a trailer queen—it was built to be driven.AdvertisementAdvertisementIf you want more stories like this, follow Guessing Headlights on Yahoo so you don't miss what's coming next.