Over the next year I'll be developing my beloved BRZ. The plan is to create a fast road car that is still practical. What would you guys like to see?

This is how I’d build it:
Supercharger kit
Wider, better wheels
Seibon CF parts
UEL headers and FT86SpeedFactory exhaust
I would also change headlights and tail lights
Proper wing
Proper front splitter
Racing seats.
I would not delete rear seats or install a roll cage because the aim is to create a fast road car, not a ludicrous track car. Practicality is highly reduced by them. If you have only one friend or only one family member it would be perfect tho.

Turbo, Rear seats delete and roll cage. but make the roll cage light and flush to the chassis. upgrade suspension and tires would be my first upgrade.

Rear seat delete wouldnt be a bad idea since the rear seats of the brz/gt86/frs are pretty useless so i think you should go for it. You’ll shave off some weight too.

I have thought about doing the same thing you are planning to do. And I wouldn’t do a turbo/supercharger conversion just yet. Maybe look into a e85 conversion, head porting, camshaft replacement, suspension and wheels&tires,
Maybe it’s worthwhile to postpone power upgrades and work on the chassis and suspension first, that’ll do wonders on your laptimes as well.

Does Alex fit in the “boot”?

Rocket bunny kit, aftermarket rims and spacers maybe, exhaust, a tune, supercharger for instant response, comfy racing seats, etc

Viper Swap… just kidding.

Honestly, we’d love to see a rotary GT86, but thinking in realistic terms, perhaps the best option would be to keep it N/A with ITB’s and do a lot of weight reduction, get a close ratio gearbox, LSD, and other handling upgrades.

Roll cage and seats with harness?

Turbo, new rims, and probably lowered ride height :D

If u put a supercharger on this car it becomes more reliable as to when you put a turbocharger in it, but if you put a turbo in it, it becomes a lot quicker