Ayikabikho ukuba siyivile i-4.0 ye-atmospheric V12 kaCosworth ekwibhentshi yovavanyo. GMA T.50 khwaza kwi-11,500 rpm - apho ifikelela kumandla ayo aphezulu angama-663 hp - okanye, nesibindi, hit the limiter kwi-12,100 rpm.
Kodwa kwividiyo yamva nje evela kuGordon Murray Automotive sibona kwaye siyiva i-supercar entsha yaseBritane kwakhona, nangona "inokutsalwa" ukuya kuthi ga kwi-5000 rpm. Xa iprototype yovavanyo lwe-XP2 yokuqala yaphuma endleleni, akukho ngaphezu kwe-3000 rpm evunyelwe.
Kodwa ukuba ivakala kakuhle kakhulu kwi-5000 rpm kwisitalato, sinokucinga kuphela ukuba kuya kuvakala njani kwi-12,100 rpm.
Ividiyo yamva nje ekuphuhlisweni kwe-GMA T.50 isibuyisela kwi-aerodrome yase-Dunsfold (umzila weenqwelo-moya we-Top Gear) kwakhona. Kuyo sibona ukuba iprototype yovavanyo lwe-XP2, esele ibonisiwe kwithuba elidlulileyo, ngoku ihamba kunye novavanyo lwesibini lwe-XP3.
UGordon Murray akazange aphoswe lithuba lokuhlala embindini wendalo yakhe kwaye athathe “uphononongo” lomjikelo wesekethe, ngoku ekhatshwa, kumzekelo wesibini, ngovavanyo oluphezulu kunye nomqhubi wophuhliso uSteve Hayes.
Malunga ne "Cold Start". Ukususela ngoMvulo ukuya ngoLwesihlanu eRazão Automóvel, kukho “iCold Start” ngentsimbi yesi-8:30 kusasa. Njengoko urhabula ikofu yakho okanye ufumana isibindi sokuqala usuku, hlala usazi ngeenyani ezonwabileyo, iinyani zembali kunye neevidiyo ezifanelekileyo ezivela kwihlabathi leemoto. Konke kumagama angaphantsi kwama-200.