Ailef was a French automotive manufacturer based in St-Martin-le-Vinoux, established around 1997. Initially, the company operated as a racing car operation, gaining experience and expertise in high-performance vehicles before transitioning to the production of road-going sports cars.

The company's notable model, the Ailef 696, was introduced as a sports car inspired by the Ferrari 206S racer. This vehicle was distinguished by its high-quality construction and was equipped with a centrally-mounted 2.85-litre V6 engine sourced from Peugeot/Renault, producing 250 horsepower. The Ailef 696 was reported to achieve a top speed of 174 mph (280 km/h), showcasing the brand's commitment to performance and engineering excellence.

Despite its brief existence, Ailef's focus on racing heritage and high-performance sports cars marked its place in the niche market of specialized automotive manufacturing.