All versions of the 308 SW come with six airbags and anti-lock brakes with electronic brake force distribution and emergency brake assist as standard. A wi-fi sensor system that allows the seatbelt warning function to remain in operation on the removable second row seats is a significant safety innovation. The car has a portable torch with a rechargeable battery and In January 2010 ESP stability control was made standard on all models.

The interior is very clever. For maximum versatility, each of the SW three middle-row seats can be individually removed with ease and they also slot into the rear in place of a less comfortable third-row seat. With five on board, standard luggage capacity is a generous 600 litres, but with only the two front seats in place, potential carrying volume reaches a remarkable 2,149 litres – more than a Mercedes E-Class estate.

Thanks to a folding mechanism on the front passenger seat, items up to 3.10 metres long can also be carried.