Sin fix- you have still failed miserably. I will list exactly how, if you wish to redeem yourself please address each one...

1. You still have not shown me one single 90's jdm/import tuner that compared or out performed the 1990-1995 zr1 or 92-95 dodge viper.
2. The only model you presented was a 96 porsche 911 gt2....this car had an msrp twice that of a zr1 or viper and was limited to a production run less than 100 units=fail.
3.The new 911 turbo has an msrp of $160,000 as a Zr1 msrp is 114,000. With $46,000 to play with difference i promise you the zr1 wins 10/10.
4. Show me a 90's model, mass produced, jdm vehicle that out performs the 90's viper/zr1
5. I will make it easier. Beat this car. 1998 Firebird formula v8. 305hp( underrated)340tq: 1/4 mile 13.1-13.5 with msrp of $22,865. Find me an import or euro car that out performs the 1998 ls1 firebird formula for an original msrp under $23,000...

By the way, the 1995 Corvette ZR1 had an msrp of $31,258. For a car that had 400hp/385tq 1/4 mile in 12.7-12.9 and still got 27mpg hwy. I would say america was and has always been king of the streets. Name any high dollar performance car from any era and i can show you an american made example that beats it...probably for half the price too lol.