Grifo 90: The Supercar That did Everything Right But Still Failed

Not because it was bad. No Quite the opposite. Its Because it showed up at precisely the wrong time. Enter the IsoRivolta Grifo 90, a machine that, on paper, should have been a triumphant return for one of Italy’s most fascinating and underrated marques: Iso Rivolta.

The TTAC Creators Series tells stories and amplifies creators from all corners of the car world, including culture, dealerships, collections, modified builds and more.

An AI-summarized transcript edited by a staffer is below.

[Image: YouTube Screenshot]

Become a TTAC insider. Get the latest news, features, TTAC takes, and everything else that gets to the truth about cars first by  subscribing to our newsletter.

Summary: The Tragic Story of the ISO Rivolta Griffo 90

The video explores the ISO Rivolta Griffo 90, a forgotten supercar that had all the ingredients for success but became one of the automotive world's greatest "what if?" stories.

The presenter begins by explaining how the original ISO Grifo of the 1960s became famous by combining Italian styling with reliable American Chevrolet V8 power, creating an elegant yet brutally capable grand touring car. Although ISO disappeared in the 1970s, the brand remained highly respected among enthusiasts.

During the late 1980s, when dormant marques such as Bugatti were being revived, Piero Rivolta attempted to resurrect ISO with a modern interpretation of the Grifo. Rather than creating a retro throwback, the goal was a contemporary supercar worthy of the ISO name.

The project assembled an exceptional team:

• • Legendary designer Marcello Gandini, whose work includes the Lamborghini Miura, Countach, and Lancia Stratos, created the styling.
  • Renowned engineer Gian Paolo Dallara developed the chassis and suspension.
  • A tubular space-frame chassis and fully independent race-inspired suspension formed the foundation.
  • Power came from a Callaway-tuned 5.7-liter Chevrolet Corvette V8 with twin turbochargers, producing 440 horsepower and an estimated top speed exceeding 186 mph (300 km/h).

The Griffo 90 remained faithful to ISO's original philosophy of pairing Italian design with dependable American mechanicals, offering exotic performance without the complexity often associated with Italian supercars.

Visually, Gandini avoided simply recreating the classic Grifo. Instead, he modernized its proportions with:

• • A longer wheelbase for improved cabin space.
  • A wider body for greater stability and larger tires.
  • Clean, muscular lines featuring subtle references to the original Grifo, including its signature front air intakes.

A full-scale yellow styling model debuted in 1991 and received widespread praise for balancing elegance, restraint, and aggression.

Unfortunately, the timing proved disastrous. The early 1990s economic recession severely damaged the market for expensive exotic cars. Investment disappeared, government support ended, and the Griffo 90 project was quietly canceled before production could begin. Only the full-size styling model survived.

Years later, enthusiast Federico Bonomei acquired and digitally scanned the original model, creating limited replicas based on the Chevrolet Corvette C5 platform. While these replicas captured much of Gandini's design, the different chassis altered the proportions and prevented them from fully reproducing the original vision.

The video concludes that the ISO Rivolta Griffo 90 was not a failure because of poor engineering, design, or concept. Instead, it was an outstanding car that simply arrived at the worst possible moment. Had it debuted a few years earlier or later, it might have successfully revived the ISO brand. Instead, it remains one of automotive history's most compelling missed opportunities — a supercar that was defeated not by its own shortcomings, but by unfortunate timing.