how can you tell if a Sunbeam Tiger is real or a clone?
The car you were looking at is actually a perfect teaching moment! It’s what enthusiasts call a “re-body” — the seller discovered it had a Sunbeam Alpine body with factory Tiger VIN and JAL tags transferred onto it. This is exactly what makes Tiger authentication tricky. Here’s how to spot the real deal:
The Tiger Authentication Committee (TAC) is the authority for verifying authentic Tigers. They’re a service of the Sunbeam Tiger Owners Association (STOA) and have inspected thousands of cars. Here’s how it works:
Important: TAC certifies the body shell — not whether drivetrain components are original.
This is where the Alpine vs. Tiger differences matter most — and where that “re-body” would be exposed:
| Feature | Authentic Tiger | Alpine (or Clone) |
|---|---|---|
| Firewall shape | Concave/convex bulge to accommodate the V8 further back | Flat firewall |
| Spark plug access panel | Factory cut holes with rubber plugs on the driver’s side bulkhead (above the accelerator pedal) for reaching #8 plug and rear valve cover bolt | No access holes |
| Steering | Rack-and-pinion mounted to frame rails (needed because the V8 blocks space for Alpine steering box) | Steering box on steering column |
| Engine bay bracing | Additional structural bracing for V8 torque and weight | Different bracing pattern |
| Motor mounts | Unique engine mount towers welded to front suspension crossmember | Alpine 4-cylinder mounts |
The spark plug access holes are a dead giveaway — Carroll Shelby had Jensen modify the firewall specifically for V8 maintenance access. No factory-built Tiger skipped this.
⚠️ Warning: Both VIN and JAL plates are easy to remove and transfer — as demonstrated by the re-body you were looking at. Tags matching a database doesn’t guarantee an authentic body!
The 1967 “Tiger” you were viewing is a textbook example of what can go wrong:
This is why savvy buyers get TAC verification before purchasing, or at minimum, know exactly what to look for in the engine bay.
If you’re shopping for a Tiger:
✅ Best: Verify TAC Certificate of Authenticity exists
✅ Must: Inspect firewall for spark plug access panel
✅ Must: Confirm rack-and-pinion steering (not box)
✅ Should: Match VIN/JAL/engine numbers against TAC database
✅ Red flag: Fresh paint hiding bodywork, mismatched panel gaps, or seller resistance to expert inspection
The Tiger market page (https://classic.com/m/sunbeam/tiger/mark-ii/) has other authentic Mark II Tigers listed if you’d like to compare — and I’d be happy to help you find one with proper TAC documentation.
Want me to search for TAC-certified Tigers currently for sale? Or do you have questions about any of these authentication details?