Veteran Motorist

• WOTC Official Reminder Textofficial rules
  Scry — Look at the top N cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.

• WWizards of the Coast2016-09-20
  Official Ruling
  Veteran Motorist's last ability resolves before the crew ability that it was tapped to activate. The +1/+1 bonus will be in effect as the Vehicle becomes an artifact creature.
• WWizards of the Coast2016-09-20
  Official Ruling
  Veteran Motorist's last ability triggers when it becomes tapped to activate a crew ability. Even if Veteran Motorist leaves the battlefield before its triggered ability resolves, that Vehicle still gets +1/+1 until end of turn.

Rulings via Scryfall