Both of these popular family cars are historically associated with the maximum five-star Euro NCAP safety rating. However, it is absolutely crucial to view these results in a broader context and with regard to the year they were tested. The safety protocols of the independent Euro NCAP organization are constantly evolving and becoming stricter almost every year. For this reason, percentage scores from older years cannot be directly compared with the results of recently tested modern vehicles. While today's tests strictly require advanced frontal impact simulations, precise cyclist detection, and complicated intersection scenarios, about ten years ago, the criteria for modern electronics were significantly more lenient. For both of these models, the original certification has officially expired due to more demanding standards.
In the case of the BMW 2 Series Gran Tourer, the crash test situation is specific, as this extended seven-seater version never underwent an official Euro NCAP test during its production life. Passive and active safety ratings in the automotive world for this car are often loosely derived from its shorter five-seater sibling, the BMW 2 Series Active Tourer, which underwent crash tests in 2014 and took home a full five stars with very good results. However, because exact and specific data for the Gran Tourer itself does not exist, it is not listed in our comparison table in accordance with precise methodology. The absence of data does not mean that the family BMW is not safe – the car benefits from a very robust construction, but from today's perspective, it simply lacks the latest generation of advanced pre-collision assistants as standard.
The Citroën Grand C4 SpaceTourer, on the other hand, actually underwent stress crash tests in 2013, still under its then-commercial name Grand C4 Picasso. It took home a full five stars with an excellent score of 86% for adult protection and an above-standard 88% for child passenger protection. Its passive safety was at a top level; however, the car's overall electronic architecture dates back to a time when advanced autonomous emergency braking (AEB) was only slowly establishing itself on the market. It is therefore no wonder that by today's demanding standards, this model would no longer repeat its full rating, and its official safety certification at Euro NCAP expired in January 2020.
In terms of overall safety comparison, neither model today offers a complete package of active assistants that would unreservedly correspond to current very strict safety standards. Although you can count on a very solid construction protecting the crew in the event of a real impact with both cars on the four-year-old used car market, in terms of prevention and modern electronics, they already belong to the old school. The Citroën Grand C4 SpaceTourer provides an indisputable advantage here in that there is completely precise and verifiable data for its spacious body proving excellent safety for children, while for the BMW, the buyer must theoretically rely only on the structural kinship with the smaller model.