mlau,
thank you for your help, anwsering to your questions:
1. I have to use the car every day. Before work i have to leave my baby girl in nursery, then my objective is to leave the car near the nursery, unfold a bike that was stored in the trunk the car and avoid the caotic traffic by going to work on bike. My trunk is very small, i have a chevrolet spark and not every bike can fit there. also, in my work i have to go to some companies that are located in social buildings, and i can't just leave the bike outsite with a lock, someone with stole it, that is for sure. For that reason i need to bring the bike along with me to my classroom (i'm a business trainer). The Brompton seams to fit in every circumstances of my everyday routine.

2. In Portugal, the folding bikes aren't really a thing, there are some bromptons (absurdly expensive as new) and there are the dechatlon's foldable bikes B'TWIN (w w w.decathlon.p t/C-1361119-bicicletas-de-cidade/N-733529-qual-e-a-sua-pratica~bicicletas-dobraveis). i Think they fold like a dahon, in half. They weigh 13 kg but the folding mechanism isn't very practical.

3. I don't have anyone in taiwan, USA or singapore. I know a guy in UK (most of my friends in UK are returning for Portugal because of the Brexit), that probably could help me if i'll ask.

4. my needs are:
- Compact and lightweight.
- When folded i can bring it with me to my work and compact to store it in my car trunk
- 3 speeds is enough
- capacity to use a front bag to carry my heavy laptop and other stuff
- doesn't need to be the most recent and stylish bike in town but i would prefere something with some aesthetics...

Also, i really think the Brompton is a very good and practical bike, i don't know that much about bikes but i think a Brompton if well treated, can last a long time.