It's got more power than a BMW M135i and even the mighty Mercedes A 45 AMG, and will happily keep up with an M3 to 100km/h; welcome everyone, to the brand new, 2015 Audi RS 3. And it's powerful.

How powerful? Only the most powerful car in this class. Though that Merc boasts the most power from a 2.0-litre turbocharged four-pot currently in production (360bhp), Audi has stuck with its acclaimed - and tasty - 2.5-litre turbocharged five-cylinder engine, here producing a considerable 367bhp and 465Nm.

It sounds good, too (we've already had a hot ride in a development prototype), thanks to that 1-2-4-5-3 firing sequence and optional sports exhaust, but the key pub ammo you need to unleash is thus: it'll go from 0-100km/h in just 4.3 seconds (versus 5.1s for the BMW M135i and 4.6s for the A 45 AMG), and top out at a limited 250km/h.

And if you ask Audi nicely (and pay them, we suspect), you can raise that limiter to 280km/h. 280km/h, in an A3!

It's hooked up to a 7spd S tronic dual clutch gearbox with two automatic modes (and a manual shift function), together with launch control and, of course, Quattro four-wheel-drive. This uses a multi-plate clutch with custom software developed specifically for this new RS 3, and is able to send anything between 50 and 100 per cent of the available torque to the rear axle. Slidey.

In fact, Audi's quite proud of this fact. "The driver is able to perform controlled drifts on low-friction road surfaces," we're told. There's torque vectoring, too, a wider front track, a 25mm drop in ride height thanks to RS sport suspension, optional magnetic adaptive damping, 19-inch wheels, huge 370mm brakes up front (310mm at the rear), and many, many RS badges.

Wrapped up in its new RS suit - featuring that high-gloss black grille, air inlets, flared arches, 'chiseled' side sills, roof spoiler, sports seats, RS steering wheel and impeccable interior quality - it weighs in at exactly 1520kg. Which is 55kg lighter than its predecessor. Thanks, MQB platform!