Audi describes its A3 Clubsport Quattro as "extreme power and dynamics in compact format." But when we look at it, all we see is a high-speed mullet: 525 hp of turbocharged business in the front, and an LED airbrake party in the back.

With a 2.5-liter five-cylinder (pinched from the outgoing TT RS), a seven-speed DCT and all-wheel drive, the A3 Clubsport Quattro will do 0-62 mph in 3.6 seconds en route to a 193-mph top speed. All impressive stuff, but we're mostly concerned with that awesome light-up retractable tail hanging off of the trunk. Seriously, how hypnotically cool is this thing?

Audi says this electrohydraulic air brake lifts from flush to "nearly vertical," cutting the A3 Clubsport's 155-to-0-mph stopping distance by almost 40 feet. When deployed, it also acts as a blinking third brake light so that others know when they're about to rear-end you. Or guarantee that you're spotted by the highway patrol and ticketed accordingly. Or maybe both.

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While it's being called a 'concept' at the moment, it's safe to assume the A3 Clubsport Quattro is pretty close to what we'll see in the soon-to-come RS3 sedan. The air brake is sort of a dash of Veyron attitude, which we dig. Hopefully both the active aero (and show car's tidy 3360-lb curb weight) are carried over into production.

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