Euro NCAP has published the safety ratings of eight new vehicles: the Volvo XC60 in the large off-road category; the VW T-Roc, Skoda Karoq and Mitsubishi Eclipse Cross in the small off-road category; the Citroën C3 Aircross and Opel Crossland X small MPV category; and two superminis – the new VW Polo and the SEAT Ibiza’s partner, the Arona. All cars achieve a maximum five-star rating. The SEAT Arona is structurally almost identical to the SEAT Ibiza rated earlier in 2017 by Euro NCAP, and has the same fitment of safety equipment. Some additional tests have been conducted and the Arona has performed at least as well as the Ibiza in these. Accordingly, this assessment is based on that of the Ibiza and the results of the additional tests. The passenger compartment remained stable in the front offset test. Dummy readings indicated good protection of the knees and femurs of both the driver and passenger. SEAT showed that a similar level of protection would be provided to occupants of different sizes and to those sat in different positions. In the full-width rigid-barrier impact, protection of the driver and passenger was good or adequate and the Arona scored fractionally better than the Ibiza. In the side barrier test, good protection was provided to all critical parts of the body and the car scored maximum points. In the more severe side pole impact, protection of chest was adequate and that of other body regions was good. Tests on the front seats and head restraints demonstrated good protection against whiplash protection in the event of a rear-end collision. A geometric assessment of the rear seats also indicated good whiplash protection. An autonomous emergency braking system is fitted as standard. In tests of its functionality at low speeds typical of city driving at which many whiplash injuries are caused, the system performed well, with collisions avoided at all test speeds.