ed ▁as ▁a ▁lux ury ▁road ster ▁and ▁offered ▁numerous ▁features ▁either ▁as ▁standard ▁equipment ▁or ▁as ▁options , ▁including ▁a ▁touch screen ▁G PS ▁navigation ▁radio ▁with ▁an ▁AM / FM ▁radio , ▁CD ▁chang er , ▁X M ▁Sat ellite ▁Radio , ▁full ▁voice ▁control , ▁and ▁a ▁full ▁B ose ▁prem ium ▁ampl ified ▁audio ▁system , ▁adapt ive ▁cru ise ▁control , ▁Bulg ari - brand ed ▁instrument ▁panel ▁cluster , ▁On Star , ▁High ▁Int ens ity ▁D isch ar ge ▁( H ID ) ▁front ▁head lam ps , ▁per for ated ▁lux ury ▁le ather - trim med ▁se ating ▁surfaces ▁with ▁power - ad just able , ▁he ated ▁and ▁co o led ▁bucket ▁seats ▁with ▁a ▁driver ' s ▁memory ▁system , ▁lux ury ▁car pet ed ▁floor ▁m ats ▁with ▁emb roid ered ▁' X LR ' ▁log os , ▁prem ium ▁al umin um - al loy ▁whe els , ▁and ▁wood ▁interior ▁trim . ▁ ▁The ▁X LR ' s ▁featured ▁adapt ive ▁susp ension ▁with ▁magnet o - r he ological ▁shock ▁absor ber ▁fluid ▁for ▁en hanced ▁ride ▁control . ▁ ▁The ▁system ▁uses ▁four ▁wheel - to - body ▁disp lacement ▁sens ors ▁to ▁measure ▁wheel ▁motion ▁over ▁the ▁road ▁surface ▁and ▁respond s ▁by ▁adjust ing ▁the ▁shock ▁d amp ing ▁almost ▁instantly . ▁The ▁shock ▁absor bers ▁are ▁filled ▁with ▁a ▁fluid ▁that ▁contains ▁susp ended ▁iron ▁particles ▁that ▁respond ▁to ▁magnetic ▁signals . ▁The ▁system