Height adjustable suspension

Many modern SUVs use height adjustability as part of active suspension systems to improve the vehicle's versatility on and off-road.

Two goals are accomplished – the long, low slung car can be raised to avoid road obstacles – it also lowers at speed on the highway to improve aerodynamics.

It can also raise the bus more than normal, which is useful when navigating roads with large amounts of speed humps, crossing railway lines or in other unusual, but not always uncommon situations.

[8] Aguirre is commonly accepted as the first person to create a Lowrider car with hydraulically adjustable suspension.

[9] In 1964, another customizer, Gene Winfield, created The Reactor, with Citroën height adjustable Hydropneumatic suspension, a car novel enough to guest star in several television programs.

These systems were initially adapted from the hydraulic pistons, valves and pumps used to adjust the flaps on aircraft.

These air suspension systems use heavy-duty rubber "bags" to replace the stock shocks and springs, with either a compressor or tank of compressed gas used to raise and lower the vehicle at will.