This Pontiac Firebird Trans Am Has Been Transformed

Gregg Hamilton’s Pontiac Trans Am started as a childhood dream inspired by Smokey and the Bandit — and turned into something no one expected. Trained by top World Rally Championship teams, Hamilton skipped the traditional big-inch V8 in favor of a GM 5.3-liter truck engine, then applied rally-derived suspension knowledge to give this Firebird handling most muscle cars never get close to. It’s a build defined by engineering judgment over budget. Watch to see how rally-car thinking reshaped an American icon.

Some car builds start with a budget and end with a compromise. This one started with a movie. New Zealander Gregg Hamilton grew up wanting exactly one kind of car — V8, manual, rear-wheel drive — and one film cemented which specific car it had to be. What he eventually built, after years spent working alongside some of the most respected rally teams in the world, doesn’t look anything like a typical tribute build. It handles like something else entirely, and the engine under the hood isn’t the one anyone would expect from a car wearing this badge.

A Firebird Born From a Movie Obsession

Hamilton traces his fascination with the Pontiac Firebird Trans Am directly back to Smokey and the Bandit, telling the story of wanting a V8, manual, rear-drive car since childhood — and landing specifically on the black-and-gold Trans Am the moment he saw Burt Reynolds behind the wheel on screen. After relocating to America, he found himself somewhere he could finally own the car that had lived in his head for years, a distinctly American machine that, as he puts it, could really only make sense to own in the one country where the movie’s legend actually lives.

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Rally Pedigree Meets Muscle Car Bones

What separates this build from a typical restomod is Hamilton’s professional background: years spent working with some of the top teams in the World Rally Championship, including stints connected to Toyota Team Europe and Prodrive — organizations responsible for some of the most sophisticated rally cars ever built. That experience shows up directly in how this Trans Am was engineered, applying handling philosophy developed for gravel stages and tarmac rally special stages to a chassis originally designed for straight-line American muscle rather than cornering precision.

The Engine Choice That Raises Eyebrows

Rather than reaching for a big-inch crate motor or a numbers-matching Pontiac V8, Hamilton built this Trans Am around a GM 5.3-liter truck engine — the kind of powerplant more commonly found under the hood of a Silverado than a Firebird. It’s a deliberate, unconventional choice, prioritizing the LS architecture’s light weight, reliability, and aftermarket support over the prestige of a period-correct engine, and it’s a decision that’s earned respect from viewers specifically because it wasn’t the expensive or obvious route to more power.

Handling Built for Something Other Than a Straight Line

Where a factory Trans Am was tuned primarily to go fast in a straight line, Hamilton’s rally-informed suspension work reorients the car around cornering composure and driver feedback — the priorities that define competitive rally cars rather than drag strip performance. That shift in philosophy is what makes this build genuinely different from the wave of Pro Touring-style muscle car builds that chase similar handling goals through more conventional aftermarket suspension kits rather than direct rally-derived engineering knowledge earned firsthand on stage.

What Viewers Responded To

The reaction in the comments centers specifically on the engine choice, with one viewer noting appreciation for Hamilton building “something out of the 5.3 truck engine and not some million dollar crate motor” — a sentiment that captures why this build resonates differently than a big-budget showcase would. It’s a build defined by engineering judgment rather than spending power, which tends to earn more respect from viewers who’ve spent time around genuine project cars themselves rather than watching from the sidelines.

The Trans Am’s Enduring Cultural Pull

Few muscle cars carry as much pop-culture weight as the second-generation Trans Am, largely thanks to Smokey and the Bandit cementing it as a symbol of American rebellion and cool in 1977 — an image that clearly still pulls enthusiasts in decades later and continents away from where the film was made. Hamilton’s build is a reminder of just how far that cultural reach extended, inspiring a build on the other side of the world grounded in a completely different automotive tradition and engineering culture.

A Build Defined by Contrast

What makes this Trans Am worth watching isn’t just the engine swap or the rally-tuned chassis individually — it’s the contrast between the two. A car whose identity was forged by an American action movie, built by someone trained in European rally engineering, running a truck-sourced drivetrain instead of anything remotely traditional. That combination shouldn’t work as well as it apparently does, and that’s exactly the tension that makes the build worth a closer look from anyone who thinks they’ve seen every possible take on this platform.

Building Across Two Continents

Bringing a build like this together across two continents also meant sourcing parts, fabrication expertise, and a donor drivetrain through channels far less convenient than what a builder working in the American Midwest would take for granted. That logistical challenge is easy to overlook watching the finished product, but it’s part of what makes Hamilton’s execution genuinely impressive — translating a childhood obsession formed on the other side of the world into a running, driving car built to his own exacting rally-honed standards.

A Case Study for Other Builders

For other builders considering a similarly unconventional engine swap, Hamilton’s Trans Am serves as a useful case study in prioritizing the right kind of performance for the intended use rather than defaulting to whatever combination generates the biggest dyno number. A rally-bred chassis paired with a reliable, well-supported LS-based engine produces a car built to be driven hard and often, rather than trailered to shows and babied — a philosophy that shows up in every decision made throughout this build.

A Build Still Evolving

Like most serious project cars, this Trans Am likely isn’t finished in any permanent sense — rally-inspired builds tend to keep evolving as their owners log more seat time and identify the next weak point in the chassis or drivetrain worth addressing. That ongoing refinement process is part of the culture Hamilton comes from professionally, where a rally car is never truly done, just continuously improved between events and seasons. That mindset is a world away from how most American muscle car restorations treat a finished build as a static object to be preserved rather than a platform to keep pushing further.

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