You’re giving me the impression that racing is your main goal here. If you’re a pro with quick shifting you can do so much more with times/racing. If racing is what you want then get a 5 speed manual v6. TRD supercharger, intake, headers, y pipe, & exhaust. O a TRD quick shift kit won’t hurt.

Crank that baby up and be GONE!! All that with some good shopping will run you aprox. 5G. 1.5g is not going to get you much of a differ in regard 2 power. Maybe good suspension package w/nice wheels. If you want to do it, do it right and no rice BS. Good Luck! My .2cents
PS: you also don't seem like you worry about longevity of the solara so go for NOS if you really want to! You probably don't see anyone with it because the solara is an every day meth of transportation 4 most of us & look forward to good clean fun for a long time. I would love 2 have the privilege of gutting out a solara strictly 4 race / pleasure only and have another form of transportation 4 day 2 day stuff. My dream is a 10 second starlet 1.8 Turbo rebuilt custom 4 race.