The upgraded, juiced up, younger version of the S7, credited as one of the United States’ first super-cars, is our number seven. While the S7 itself was a thing of beauty when it first came out in the year 2000, the twin turbo variant, which came into production in 2005, is a significant improvement. The TT not only has two turbochargers made by Garrett AiResearch, allowing 200 more horsepower.