The newer bentleys such as the continental GT and flying spur definitely aren't as bad maintenance wise as older bentleys. However, parts are expensive and relatively minor jobs could accumulate in cost quickly.My father has a '06 Arnage that we got pre-owned with only 12K miles; overall not bad so far on maintenance but we've had to replace a window regulator which was a $1000 job alone. I know about 7 or 8 people who daily drive their continental gt's and flying spurs and haven't had too many problems so far. When maintenance is needed though, be ready because parts are not cheap. As for the power windows, it's a common problem from what i've seen.
Jet Black / Gloss Black Grilles / 8000k D1S low beam / 6000k HID fogs / GP Thunder 8500k angels & cornering bulbs / black reflectors / gloss black vinyled window trim / tints / smoked rear turn signals / black roundels / AC Schnitzer roof spoiler / VRS style decklid spoiler / Matte black Stripes / Rear fogs / matte mirrors / 19" LM reps / APR lip