For the Captiva, the production version of the S3X, both five- or seven-seat configurations are available. Standard safety features include: antilock brakes, electronic stability control (ESC), front seatbelt pretensioners and force limiters, and driver and front-passenger airbags. Side-curtain airbags are standard on higher luxury-level variants in some markets. In crash safety tests conducted by Euro NCAP, the Captiva was given a four out of five stars crash rating. The results from the test were helped by the use of high-strength steel used in the body shell which was designed to spread crash forces over distinct load channels, therefore ensuring the safety of the occupants within the safety cell. The vehicle's optional active all-wheel drive system is fully incorporated with the ESC and antilock braking systems, consequently improving car handling and control. When the vehicle detects a loss of traction, the all-wheel drive mode is activated automatically. In ordinary driving situations, only the vehicle's front wheels are used.