If you are in love with 2jzgte powered dyno queen magazine tuner cars with aem and injen stickers etc, spend monies and buy a supra, it will also be beaten to shit from previous drag race owners of Pakistan who want to measure their manhood at illegal races on road corners.
If you think you can dally drive a built 2jz, LOL, you need a reality check - any engine that has been overworked has a different maintenance regime compared to factory. Meaning the 1000 hp supra videos you see are garage queens and require a day in the workshop after every road use.
400 hp supras will also need a lot of “pampering” and even more “caring and pampering” when its married to an RX8 because the rx8 ecu, eps and bcm etc are left in place because they are required to keep the canbus active in order to have functions like working gauges, ac, power steering etc.
The engine ecu of the 2jz runs as a standalone setup in the rx8.
Then you mentioned cars like cl9 and then suddently bmw 530?
Im not able to quite grasp your choice? You are jumping from a sports car to a front wheel drive econocar to a rwd midsize sedan.