oooh this is a fun game, I spend way too much time thinking about these sorts of things

My garage would be fairly basic. I'd hang onto my current SE but I'd be torn on what to do with it. I do kinda love this thing and part of me says leave it stock(ish) and enjoy it for what it is, but I need some sort of batshit crazy rotor in my life and money being no object - I'd drop a J-port 13b into it. I'd also supplement it with a minter Malibu Gold NA for sunny sunday arvo cruises with the missus. The SE would be for summer night hills runs with my mates and popping obscenely large flames
I'd have to get another shitty non turbo S13 silvia to re-create my favourite drift car. CA18de, basic sus work, modded knuckles and a locker. This would then be an ongoing project with little upgrades and tweaks as my skills increase, eventually leading to a basic RB20 turbo setup, but with a crazy exhaust manifold so it sounds evil

I'm a Lambo head so an original Diablo would be had, just for the nostalgia factor. Since money is no object make it a purple SE30, with the Jota upgrade just cause its pretty much the most savage of the factory pre-Audi Diablos. Could see myself attempting to track this, but then again with the Silvia and the 13B SE, maybe I wouldn't bother

A yellow Murcielago SV would be on the list too, would be my daily
Another JZX100 Chaser would probably find its way into my heart, with minor mods it would be a more appropriate daily - or I could go to town on it and have another drift car. Decisions.
Some sort of recent E class Merc would be the proper daily. The only car that is normal.
They are probably the cars that I'd hang onto, the rest of my garage would be a revolving door of random exotics, muscle cars, lowriders, euros, shitbox drifters and stupid projects.