30,000 is a very fair price for a clean Supra. Browse the forums and you will see that they usually sell in under a week. The demand for them is crazy.
Most Supras are just built to be highway monsters to take down GT-R’s and UGR Lamborghinis. If I wanted a 600whp car I have tons of cheap options. You can get that out of a C5 vette, F-Body, Mustang, etc. for under $30k WITH the build.
Saki, you are thinking that this car also has to be able to serve as a daily driver. I get that, that’s what makes the RS4 the great car that it is. To you, having two cars seems crazy but any 600+ car is going to be RWD unless it’s a 70k german car. A 350 hp car is boring and slow around here.