New springs, rims and tires

[Stiv]

Hi guys,

So, I sold my TS rims for a good price, and bought my first winter set (15" steels with Fulda 185/60 tires).

Now I'm saving some money to buy new summer set. Here's my dilema:
17" OZ Michelangelo + 215/45 Goodyear F1 GSD3
or
16" OZ Superturizmo + 205/45 Goodyear F1 GSD3

As you can see, there is a some difference in wheel diameter and tire width.
The difference in weight for one rim is about 3kg.

At the same time I'll put some Eibach Pro kit springs or some Tein springs (I can get them with some great discount).

Just for the record, top speed of 160kph is enough for me, but i can't never get enough acceleration and handling.

And for a second, let's forget about wheel weight. Will smaller diameter tires alone improve acceleration?

After this mods, I'll go for aFe CAI, NST underdrive pulley and custom exhaust.

Yeah, I'm following Castrex steps

And yes, happy holidays to all of you