for me i will keep the 2.0 and buy the 1.5tc ... honda no more producing 2.0 DOHC N/A engine...2.0 got VTEC and the new 1.5 only have variable valve timing with no lift profile..
if rindu rindu baaaaaaaaaa Vtec sound..drive 2.0 hehe

Once you drive 1.5TC, you will never want to drive the 2.0 NA. Technology, styling, perfomance, specs all are better than FD, of course FC is  a decade newer than FD, cannot be compare like this.
For me i will keep the FD though, especially 2.0 one.

My previous car was the 2011 Honda Civic FD2 Concept M edition.

Beauty is in the eyes of the beholder, so I won't answer the styling difference.
In terms of features, the new Civic far outstrips the old one. You only lose the glovebox lights.
In terms of performance, it also far outstrips the old one. Only the top speed is limited to 207km/h. The old FD2 can be driven to 224km/h

Choosing between 1.8, tc & tcp, you can read the 1st post for advice.

Whether you should upgrade... There is a Malay saying, "tepuk dada, tanya selera"

im looking 2nd hand FD2.0... RM50-60k...
because the 2.0 and the safety VSA..if not this two toyota altis might the best choice but lack of VSA
no Vtec no paddel..

Very big difference bro. The fuel consumption if you're a light footed driver is extremely different too. Performance from 0-200 on FC1 is super quick compared to FD2, and the acceleration is better, thanks to the turbo. This is talking stock vs stock la. If you did modification, might be different story already.

Fuel consumption, best I could do on the FD2 was around 15km/l on the highway and around 11km/l in the city. FC1 I have achieved 19km/l on highway and 13km/l in the city. But if you really step on the gas often - hard acceleration, driving 200km/h etc - the FC1 will drink as much as the FD2.

Very big difference bro. The fuel consumption if you're a light footed driver is extremely different too. Performance from 0-200 on FC1 is super quick compared to FD2, and the acceleration is better, thanks to the turbo. This is talking stock vs stock la. If you did modification, might be different story already.

Fuel consumption, best I could do on the FD2 was around 15km/l on the highway and around 11km/l in the city. FC1 I have achieved 19km/l on highway and 13km/l in the city. But if you really step on the gas often - hard acceleration, driving 200km/h etc - the FC1 will drink as much as the FD2.