Which material used in Maestro body? Metal or what?

The Maestro's body is built up of plastic (PF CBS Plastic) in order to reduce the weight of the scooter. It weighs only 109 kg and very easy to handle it.
Well, if you could go for the Yamaha Ray or Ray Z. That might be the best for you. The Ray is specially designed of women riders. It's so light and so easy to handle even in terrible city rides. It gives back good mileage as well. The only drawback I found with the Ray is its poor performance. It's not a powerful scooter. But, there is enough power in it in which you can enjoy commuting all the way. I prefer you to choose the Ray.

but you cant sale easily after one or two years ray resale and service centres are also very rare