▁G ulf stream ▁was ▁only ▁interested ▁in ▁the ▁Tur bo ▁Commander , ▁and ▁did ▁not ▁restart ▁production ▁of ▁the ▁ 1 1 2 / 1 1 4 ▁series . ▁In ▁ 1 9 8 8 ▁G ulf stream ▁sold ▁the ▁rights ▁to ▁Rand all ▁Gre ene , ▁who ▁set ▁up ▁Commander ▁A ircraft ▁to ▁provide ▁support ▁for ▁existing ▁aircraft ▁and ▁build ▁new ▁aircraft . ▁ ▁The ▁design ▁was ▁given ▁a ▁fairly ▁extensive ▁set ▁of ▁up gr ades ▁and ▁rec ert ified ▁as ▁the ▁Commander ▁ 1 1 4 B ▁in ▁ 1 9 9 2 . ▁Among ▁the ▁changes ▁were ▁a ▁new ▁stream lined ▁cow ling , ▁strength ening ▁of ▁the ▁air frame , ▁changes ▁to ▁various ▁air ▁int akes , ▁and ▁a ▁new ▁prop . ▁These ▁improved ▁cru ise ▁speed ▁by ▁a ▁significant ▁, ▁making ▁it ▁more ▁compet itive ▁with ▁similar ▁models ▁from ▁other ▁companies . ▁More ▁significant ▁up gr ades ▁were ▁carried ▁out ▁in ▁the ▁interior , ▁which ▁received ▁a ▁high - quality ▁le ather ▁u ph ol st ery ▁upgrade , ▁reading ▁l amps , ▁better ▁sound proof ing ▁and ▁an ▁optional ▁powerful ▁air ▁condition ing ▁unit . ▁One ▁rev iewer ▁sum med ▁it ▁up ▁as ▁" an ▁ult ra - sp a cious ▁interior ▁that ▁looks ▁more ▁like ▁a ▁lux ury ▁car ▁than ▁a ▁sp am ▁can ". ▁ ▁In ▁ 1 9 9 5 ▁they ▁added ▁the ▁ 1 1 4 TC , ▁a ▁version ▁of ▁the ▁ 1 1 4 B ▁with ▁a ▁ 2 6 0