550hp 2015 Genesis Sema car

[Genpire]

I'm betting if Hyundai comes out with another R-spec sedan it'll be close to 550.

http://www.automobilemag.com/features/news/1409-2015-hyundai-genesis-sedan-tuned-to-550-hp-for-sema/

 

[Aquineas]

Aside from the wheels (1988 called; they want their wheel color back), that doesn't look half-bad. Tuning a supercharged 11.8:1 compression engine to be reliable would be an appreciable engineering challenge. Transmission would be another challenge, but obviously, both can be done. I'd buy a de-tuned version of this (say 500hp range) if Hyundai produced it.

 

[Genpire]

hopefully changing the driveshaft was to facilitate lowering rotational mass and not because the stock driveshaft couldn't handle the increased power load.