Archive first published
Shelby Series 1: The Roadster Carroll Shelby Built From Scratch
The Shelby Series 1 is the only car that Carroll Shelby's company designed from a clean sheet rather than adapting another maker's car. Shown in Los Angeles in 1997, it went into production as a 1999 model. Only 249 cars were completed in the original run. Its 4.0-litre Oldsmobile Aurora V8 gave about 239 kW (320 hp), and many parts came from General Motors.
Key takeaways
- Unveiled at the 1997 Los Angeles Auto Show as a modern successor to the Cobra.
- 249 cars built as 1999 models, half of the 500 that had been planned.
- Aluminium chassis, carbon-fibre and glass-fibre body, 1,202 kg, 0–60 mph in 4.4 s.
- Certification costs stopped production; later cars were sold as component cars, and a small revival was announced in 2024.
What the 2015 report mixed up
The old 1cars article of 2015 called the "Shelby series" a legend and showed photos of Mustang-based Shelby GT500s. Its facts described a different car. The Oldsmobile engine, the weight of 1.2 tonnes, the Buick and Pontiac parts and the certification problems all belong to the Series 1 roadster. This page puts them back on the right car.
The Mustang-based cars are a separate story. For those, see the Shelby Mustang GT500 of 1967 and the original Shelby Cobra.
Shelby Series 1 specifications
| Parameter | Shelby Series 1 |
|---|---|
| Engine | 4.0-litre (3,995 cc) Oldsmobile Aurora DOHC V8, tuned by Shelby |
| Power | About 239 kW (320 hp) at 6,500 rpm |
| Torque | 393 Nm at 5,000 rpm |
| Supercharged option | About 336 kW (450 hp) |
| Gearbox | ZF six-speed transaxle with a torque tube |
| Chassis | Welded 6061 aluminium with bonded honeycomb floor |
| Body | Carbon-fibre and glass-fibre panels |
| Weight | 1,202 kg, about 50/50 front-to-rear |
| 0–60 mph | 4.4 s (Motor Trend, standard car) |
The engine sat behind the front axle for the near-even weight split. Double wishbones with inboard coil-over dampers were used at both ends. By our calculation, the standard car carried about 5.0 kg per kilowatt.
Parts from General Motors
General Motors oversaw much of the production and supplied the engine. The radio with cassette and CD player came from Buick. Pontiac supplied the instrument cluster and climate controls. That explains the old text's "mutual help between corporations".
The supercharger was an expensive option that also required bigger brakes. Only 11 cars received both the supercharger and the X50 engine package.
What happened to the Series 1
| Year | Event |
|---|---|
| 1997 | Shown at the Los Angeles Auto Show |
| 1999 | 249 cars built, all registered as 1999 models |
| 2000 | Shelby announces a price rise for existing orders, then reverses it within weeks |
| During production | Venture Corporation buys Shelby American with the Series 1 rights, then goes bankrupt |
| 2004 | Shelby Automobiles buys the remaining Series 1 assets |
| 2005 | Further cars finished as component cars without engine and gearbox |
| 2006 | Three Series II prototypes shown; the project stops |
| 2024 | Revival with 10 planned cars announced |
Quality was a problem from the start: the soft tops did not fit, and 30 cars were delivered without them. When the 1999 safety and emissions certificate expired, renewing it was too expensive. This is why later cars left the works without a drivetrain.
Buying a Series 1 today: our verdict
The Series 1 suits collectors of Carroll Shelby's cars who want something rarer than a Cobra replica. Choose a naturally aspirated car with full records, because a supercharged test car suffered clutch failure in a period magazine test. Ask whether a car is one of the 249 originals or a later component car.
Compare it with other American performance cars using the comparison tool, check its power-to-weight with the power-to-weight calculator and read about the engine's maker in Oldsmobile's history.
FAQ
How many Shelby Series 1 cars were made?
The original run produced 249 cars, all registered as 1999 models. A 500-car run had been announced. Later cars were finished from leftover parts as component cars without an engine and gearbox, so they carry different serial numbers.
What engine is in the Shelby Series 1?
It uses a 4.0-litre Oldsmobile Aurora V8 with twin overhead camshafts per bank, tuned by Shelby. It makes about 239 kW (320 hp) at 6,500 rpm. A supercharged option raised output to about 336 kW (450 hp).
Why did Shelby Series 1 production stop?
Certification under US safety and emissions rules was expensive, and renewing it after the 1999 certificate expired cost too much. Venture Corporation, the owner of Shelby American, also went bankrupt during the programme.
Is the Shelby Series 1 a Mustang?
No. It is a two-seat roadster with its own aluminium chassis and an Oldsmobile engine. Unlike most cars with the Shelby name, it was not based on a Ford model.
