A vehicle lowered to the maximum extent possible, often touching or nearly touching the ground. Common in stance and lowrider culture.
Slammed describes a vehicle lowered as far as possible, with ride height significantly reduced from stock. The exact threshold varies but typically refers to a car where the body is at or below tire-tread height, or where the wheels are tucked deep into the fenders.
The term predates modern stance culture and traces to lowrider and Cal Look traditions of the 1970s and 1980s. American hot rod and lowrider builds frequently lowered cars dramatically. Modern slammed culture has merged this heritage with Japanese tuner influences (shakotan), VIP styling on Japanese sedans, and European stance treatments on 1990s and 2000s sport cars.
Slammed builds typically use coilovers (for fixed low ride height) or air suspension (for adjustable ride height that can be raised for parking and lowered for show). Air suspension has become the default for serious slammed builds in the 2010s and 2020s because of the practical benefit of being able to drive over speed bumps without scraping.