The Honda S2000 is an open-top sports car manufactured by Japanese automobile manufacturer Honda from 1999 until 2009. First shown as a concept car called the SSM at the Tokyo Motor Show in 1995, the production version was launched on April 15, 1999, to celebrate the company’s 50th anniversary. The S2000 is named for its engine displacement of two liters, carrying on in the tradition of the S500, S600, and S800 roadsters of the 1960s.

Several revisions were made throughout the car’s production life, including changes to the engine, gearbox, suspension, interior, and exterior. Officially two variants exist: the initial launch model was given the chassis code AP1; though cosmetically similar, the facelifted version, known as the AP2 in North America and Japan, incorporated significant changes to the drivetrain and suspension. Production of the S2000 ceased on August 19, 2009.

The Honda S2000 was notable for its exceptional specific power output of about 124 hp per litre, or about two horsepower per cubic inch, the highest of any mass production aspirated engined car.

The S2000 has since become a legitimate modern classic car, having seen a significant appreciation in the price for valued examples in good condition. In the JDM community and the car community as a whole, the most sought-after models are special edition productions such as the CR (Club Racer) in the USA market; the standard AP1 and AP2 models have achieved collectible status as well.