What do these terms mean?
Freshen: Minor changes to interior and exterior, such as new grille, fascia, front and rear lights or seat surfaces.

Re-engineering: Significant engineering changes, such as revised powertrain, chassis, suspension, center stack or interior. Often includes some new sheet metal.

Redesign: New platform, powertrain, interior and sheet metal. Engine and transmission could be carried over.

New: A nameplate or variation has been added to lineup.