Side-by-side (vehicle)

A side-by-side vehicle (SxS or SSV), is an off-road vehicle with a minimum of two seats positioned side by side and enclosed within a roll cage structure. They have a minimum of four wheels (or continuous tracks) and are operated by foot controls and a steering wheel. Depending on use and application they can also be called a utility task vehicle, utility terrain vehicle (UTV), recreational off-highway vehicle (ROV), or multipurpose off-highway utility vehicle (MOHUV).^{[1][2][3][4][5]}

Side-by-sides may be included in the category of all-terrain vehicles (ATVs),^[6] but do not include vehicles with saddle-seats that are operated using handlebar-type controls that are the conventional meaning of that term.

The American National Standards Institute (ANSI) publishes two standards for side-by-sides. ANSI/OPEI B71.9-2016 sets standards for multipurpose off-highway utility vehicles (MOHUV) specifically intended for utility use which are intended to transport persons and cargo, have a non-straddle seat, are designed to travel on four or more wheels, use a steering wheel and pedals for controls, have a top speed of at least 25 mph (40.2 km/h), are 2030 mm (80 in) or less in overall width, have a gross vehicle weight rating (GVWR) of no more than 1814 kg (4000 lb), and with a minimum cargo capacity of 159 kg (350 lb).^[7] ANSI/ROHVA 1-2016 sets standards for recreational off-highway vehicles as having speed capability greater than 30 MPH (48 km/h), GVWR no greater than 1700 kg (3750 lbs), and engine displacement equal to or less than 1,000cc (61 cubic inches) for gasoline fueled engines.^[8]

In 2009, the U.S. CPSC warned: "The vehicles may exhibit inadequate lateral stability, undesirable steering characteristics, and inadequate occupant protection during a rollover crash." According to the CPSC, between 2003 and August 2009, 116 deaths occurred in ROV/UTV accidents.^[9]

Since the 2017 Dakar Rally, the SSV category vehicles have competed in a separate class, which is defined as four-wheel side-by-side vehicles with 1000 cc maximum displacement.^[10] Previously, they were classified in the Cars T3.3 subclass. In 2021 Dakar Rally organizers and the FIA introduced common categories - Group T3 for light prototypes and Group T4 for production based side by side vehicles. The trucks were reclassified to Group T5.

Other off-road racing series include side-by-side classes, such as the Lucas Oil Off Road Racing Series, TORC: The Off-Road Championship, SCORE International, Best in the Desert, and Grand National Cross Country.

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Ukrainian forces have used UTVs during the 2022 Russian invasion of Ukraine, using a crew of two, fitted with Stugna-P missiles, some with machine guns, to destroy Russian tanks and positions. They have been referred to as "Mad Max" buggies.^[13] The US Marines are amongst other military forces to utilise forms of side-by-sides such as Polaris RZR.^[14]

Side-by-sides are allowed to be street legal in various U.S states however the vehicle requirements and the types of road allowed for use vary.^[15]

• Neighborhood Electric Vehicle (NEV)
• Squad Solar - Solar electric side-by-side

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