500HP Big Turbo Audi Avant Review: The Ultimate 5-Cylinder Sleeper Wagon Acceleration & Sound by turboandstance - July 1, 2026July 1, 2026 The Big Turbo Audi Avant proves that appearances can be deceiving. Beneath the understated styling of this classic Audi wagon lies a heavily modified turbocharged 5-cylinder engine producing nearly 500 horsepower. While modern Audi models like the RS3 have kept the legendary five-cylinder alive, this old-school Avant delivers a completely different driving experience with raw turbo power, unmistakable engine notes, and true sleeper appeal. In this review, you’ll discover what makes this custom Audi Avant such a unique performance machine. From its massive turbocharger and explosive acceleration to the iconic five-cylinder soundtrack that Audi enthusiasts love, this wagon combines practicality with serious speed. If you’re a fan of sleeper cars, turbo builds, classic Audis, and high-horsepower street machines, this is one build you won’t want to miss. For more content like this one follow us also on Facebook, Pinterest or Instagram!