Isithuthuthu Sikagesi Sasezindaweni Ezingamadwala I-Greenger G3 iyisithuthuthu sikagesi sasezindaweni ezingamadwala esakhelwe abagibeli abaqalayo. I-G3 ivumela intsha ukuthi ihambe edolobheni futhi ihlole imizila engaphandle komgwaqo. Isimo sayo esilingisa imvelo sigqugquzelwe yinyoni encane ebizwa nge-hummingbird. Izindlela ezintathu zesivinini ezilungisekayo kanye nesikhala esiphakathi kwephansi nesithuthuthu esingamamilimitha angama-200 zifanele izindawo ezihlukahlukene. Isihlalo, izibambo kanye nezinyathelo zezinyawo zihlelwe ukuze kube nokunethezeka ekugibeleni. Uhlaka olulula lwe-aluminium alloy lushaywe ngesihlabathi futhi lwafakwa insimbi ngogesi ukuze lumelane nokugudlwa nokugqwala. Uhlelo lwamandla kagesi luthule futhi lusebenzisa ibhethri le-lithium elikhumulekayo.