Sport utility vehicle body and tall interior packaging, a high seating position and center of gravity, and available all-wheel drive for off-road capability. Some SUVs include the towing capacity of a pickup truck with the passenger-carrying space of a minivan or large sedan. The traditional truck-based SUV is more and more being supplanted by unitary body SUVs and crossovers based on regular automobile platforms for lighter weight and better fuel efficiency. In some countries, notably the United States, SUVs are "not" classified as cars, but as "light trucks". SUVs overtook lower medium segment cars to become the world's largest automotive segment in 2015,
Initial operating capability Once the capability is fully developed, Full Operational Capability may be declared. For example, the capability may be fielded to a limited number of users with plans to roll out to all users incrementally over a period (possibly incorporating changes along the way). The point at which the first users begin using the capability is IOC, with FOC achieved when all intended users (by agreement between the developer and the user) have the capability. This does not preclude additional users from obtaining the capability after FOC. Alternatively the specifics of the program may cause a contract and acquisition-defined definition that