▁of ▁St ella ▁for ▁the ▁ 2 0 1 5 ▁World ▁Sol ar ▁Challenge ▁by ▁E ind h oven ▁University . ▁It ▁was ▁the ▁winner ▁in ▁its ▁class ▁again . ▁With ▁a ▁top ▁speed ▁of ▁ 1 2 5   km / h ▁and ▁a ▁European ▁range ▁of ▁ 1 0 0 0 ▁kilom eters ▁it ▁is ▁a ▁substantial ▁achiev ement ▁with ▁respect ▁to ▁common ▁electric ▁vehicles . ▁ ▁St ella ▁Vie ▁ ▁In ▁ 2 0 1 7 ▁the ▁E ind h oven ▁team ▁have ▁built ▁a ▁new ▁car ▁for ▁the ▁World ▁Sol ar ▁Challenge , ▁called ▁St ella ▁Vie , ▁featuring ▁five ▁instead ▁of ▁four ▁seats . ▁By ▁its ▁introduction , ▁this ▁car ▁was ▁the ▁most ▁efficient ▁family ▁car ▁ever ▁built . ▁More ▁efficient ▁than ▁its ▁prede cess ors ▁due ▁to ▁its ▁light ▁weight ▁and ▁aer od ynamic ▁form ▁and ▁efficient ▁enough ▁to ▁win ▁the ▁Cru iser ▁Class ▁of ▁the ▁World ▁Sol ar ▁Challenge ▁for ▁the ▁third ▁consecutive ▁time ▁with ▁a ▁big ▁lead ▁on ▁the ▁competition . ▁ ▁Tw ente ▁One ▁▁ ▁The ▁Tw ente ▁One ▁is ▁the ▁second ▁solar ▁car ▁developed ▁by ▁the ▁University ▁of ▁Tw ente ▁and ▁Sax ion ▁University ▁( at ▁En sch ede , ▁De vent er ▁and ▁Ap el do orn ) ▁ ▁in ▁ 2 0 0 7 , ▁and ▁succeed s ▁the ▁Sol UT ra . ▁It ▁was ▁designed ▁to ▁particip ate ▁in ▁the ▁ 2 0 0 7 ▁World ▁Sol ar ▁Challenge . ▁ ▁Its ▁main ▁innov ations ▁were ▁a ▁pivot ing ▁solar