At first glance it appears the BMW 5 Series models seen here wearing a slightly different front bumper depict the upcoming facelift.  But in actuality they're test mules for BMW's upcoming new engines particularly the inline six cylinder turbo.  Set to debut in the 335i Coupe (E92) sometime this winter the modified front bumper is designed to accommodate the new engines with increased airflow.  The 5 Series will receive a minor facelift much like its predecessor, the E39 5 series.  But it's safe to say that these 5 Series models are not it.

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