SPRING GREEN, Wisc. (October 29, 2025) – Ringbrothers, the world-renowned custom car builder and parts manufacturer, returns for the 2025 SEMA Show, held Nov. 4-7 in Las Vegas, with the world debut of “KINGPIN” and SEMA premiere of “OCTAVIA.” The two builds are set to take the SEMA Show by storm as each furthers innovation in engineering and celebrates the spirit of hot rodding. 

Details and schedule:

  • “KINGPIN” 1969 Ford Mustang Mach 1: A complete reimagining of the original Ford Mustang Mach 1, KINGPIN pushes the limits of performance and aesthetics of one of America’s most iconic muscle cars. Boasting over 800 horsepower and 5,500 meticulous and laborious build hours, KINGPIN combines a modern drivetrain, suspension and chassis with Ringbrothers’ signature superior build quality and customization.

KINGPIN will be unveiled on Tuesday, Nov. 4, at 9:30 a.m. in the Ringbrothers booth #23191.

  • “OCTAVIA” 1971 Aston Martin DBS: OCTAVIA represents more than 12,000 combined hours of meticulous engineering and craftsmanship. Beginning with a 1971 Aston Martin DBS, Ringbrothers painstakingly restored and re-imagined what an “English muscle car” could be. The bespoke carbon-fiber bodywork has been widened some 10 inches in the rear and 8 inches at the front. Underneath the clamshell bonnet is an 805-horsepower supercharged V8 backed by a six-speed manual gearbox. Every facet of the Aston Martin has been tailored with bespoke components that showcase Ringbrothers’ meticulous attention to detail and exceptional build quality. Originally debuted at The Quail, A Motorsports Gathering in August, this marks OCTAVIA’s first appearance at the SEMA Show.

OCTAVIA will debut on Tuesday, Nov. 4, at 11:30 a.m. in the Gentex booth #23889