▁were ▁in ▁fact ▁the ▁final ▁design , ▁ready ▁for ▁launch . ▁ ▁With ▁an ▁overall ▁aer od ynamic ▁coefficient , ▁despite ▁the ▁block y ▁shape , ▁better ▁than ▁the ▁F iat ▁ 1 2 7 ' s , ▁the ▁first ▁P andas ▁featured ▁a ▁re cess ▁in ▁the ▁adjacent ▁body work ▁rather ▁than ▁door ▁handles ; ▁and ▁completely ▁flat ▁glass ▁in ▁all ▁windows ▁— ▁we igh ing ▁less ▁and ▁making ▁them ▁in exp ensive ▁to ▁manufact ure , ▁as ▁well ▁as ▁easy ▁to ▁replace ▁and ▁inter change able ▁left ▁to ▁right . ▁F iat , ▁in ▁fact , ▁had ▁difficulty ▁finding ▁a ▁manufact urer ▁for ▁the ▁highly ▁simplified ▁glass . ▁The ▁engine ▁bay ▁was ▁designed ▁to ▁accept ▁either ▁a ▁trans verse ▁or ▁longitud inal ▁engine ▁configuration : ▁in ▁practice ▁the ▁simple ▁sheet ▁metal , ▁body - color ed , ▁asym met rical ▁gr ille ▁( der ived ▁during ▁the ▁design ▁process ▁by ▁fol ding ▁a ▁piece ▁of ▁paper ) ▁was ▁position ed ▁either ▁with ▁its ▁int ake ▁on ▁the ▁left ▁for ▁the ▁air - co o led ▁P anda ▁ 3 0 ▁and ▁on ▁the ▁right ▁for ▁the ▁water - co o led ▁P anda ▁ 4 5 . ▁▁ ▁The ▁body ▁side ▁pan els ▁were ▁continu ously ▁w eld ed ▁to ▁the ▁roof ▁panel ▁and ▁covered ▁with ▁a ▁full - length ▁black ▁m old ing ▁— ▁elimin ating ▁an ▁expensive ▁sheet ▁metal ▁fol d , ▁self - form ing ▁a ▁rain ▁g utter , ▁and ▁impro ving ▁aer od ynam ics .