What do you think about a Mazda 121 (the “Ei”? Is this a reliable car, which you can buy without hesitation? What should one spend for a reasonable vehicle maximum? Then another question about the folding sliding roof… I looked at a 121 yesterday and the roof was open without any problems. Only there were buttons in the back of the car, as well as the front with the inscription: “Real open / Rear close”. These were however without function. Can the roof also be opened from the back to the front?