** Ford's F.N shares down 3.5% premarket to $8.39 after report Bernstein turns bearish

** Bernstein cuts rating to 'underperform' with tariff risk not priced in, thefly.com reports

** Automaker stocks saw increasing pressure last week after China announced retaliatory tariffs

** On Mon, an auto advisory firm in Detroit, Michigan forecasted U.S. and Canada auto sales could decline by nearly 2 mln vehicles this year if global trade war escalates

** GM shares down ~2% before the bell at $41.60

** Through Tues close, F shares down ~11% YTD, while GM shares down 20%

(Lance Tupper is a Reuters market analyst. The views expressed are his own)

((lance.tupper@tr.com 1-646-279-6380))