The most important characteristics to look for in a family car are: Safety, Performance, and Comfort. Having a top-notch break and traction system along with airbags with dual threshold and stage deployment is good. Also a tried and true M Servotronic Power rack and pinion variable assisted steering system as well as an adaptive automatic transmission is a must. Throw in leather power seats and GPS and DVD navigation Aid and you’re simply prepared to move. Find out more UsedBMW.