BMW's New 3-Series Comes With Tech Array to Battle Mercedes

  • Sedan remains BMW’s best-selling model among SUV popularity
  • Carmaker issues first profit warning in decade on trade drag

New BMW 3-Series sedans at the Paris Motor Show on Oct. 2.

Photographer: Marlene Awaad/Bloomberg

BMW AG has packed its revamped 3-Series sedan with tech gadgetry like smartphone entry, auto-reverse and an in-car assistant that learns drivers’ routines, aimed at delivering a crucial sales bump after growth slowed.

The best-selling model, unveiled at the Paris car show and available in March, demonstrates how manufacturers have moved away from luring customers with luxurious trimmings and engine choices. Carmakers battling in the mid-range premium segment that also includes the Mercedes C-Class and Audi A4 aren’t waiting for top-line models to offer advanced technologies.