Thank you for all of the feedback.
This is what it reads on my tires 195/50R15 (as per photo below). As I understand the 195 represents the tire width, 50 is aspect ratio, R is for max speed rating with full load and 15 is the rim diameter (is this all correct, I did measure the rim and got 16", or is it because only the area that gets mounted is measured - Correct?)
9. If I buy alloys 195 mm wide, will this mean that I do not need spacers or do I need to figure out the actual rim dimensions?
10. Will 17" make a dramatic difference in appearance compared to current 15"? I wouldn't want to go 18" as I might get occasions where the car is fully loaded but I do want to get a bit of wow factor. I would be little bit sad if I spend some good money on rims and only get "meh..." reaction or even worse, not be pleased with it myself.
11. If I go with 17" what sort of aspect ratio I should then consider?
12. I'm thinking to go dark black rims (and maybe have some red on the outside rim). I am working on the interior lighting and its mainly red. I know its very individual but in your opinion could there be some other colours that could look nice on black.
ref my previous question 6. Any idea about the cost and place to get it done.
Thanks for all of the info. This has been great stuff.