With a sleek, fastback body, 20-inch wheels and aggressive styling mods, the RS7 could get by on looks alone—but as an RS model, that’s not necessary. This bahn-burner packs a spectacular twin-turbo 4.0-liter V-8 that makes 560 hp, a performance-tuned eight-speed automatic, all-wheel drive, and a lowered suspension. For more power, the RS7 Performance makes 605 hp. While the six-figure price tag is not cheap, the RS7 is as close as it gets to an R8 supercar with four doors and a hatch.