ABT debuts 375kW tuned RS4+ Avant wagon: 2019 Geneva Motor Show

Glance at the ABT RS4+ Avant at the 2019 Geneva Motor Show and it might just look like a slightly hotted-up RS4. Look closer, though, and you'll see ABT, as basically Audi’s own Alpina brand that races and modifies factory cars, has pumped the RS4’s toughness to C63-frightening levels.

Limited to 50 customers, the pack ups power, tweaks the suspension, restyles the interior and adds a whole lot more presence with new exterior bits.

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The car’s 2.9-litre twin-turbo V6 powertrain produces 375kW, up from 331kW, thanks to a new engine control unit and intake cover. Torque swells, too, from 600Nm to 680Nm, representing rises of 44kW and 80Nm respectively.

This reportedly drops its acceleration times by two tenths, falling from 4.1 seconds to 3.9, but if you want to squeeze everything from the stock engine, you can add the Power S Boost option, for 4740 € (AU$7613). It puts out another 15kW and 10Nm and includes a radiator kit.

An exhaust system with the stock ABT package sharpen its sound and swap oval end tips for a new 102mm quad tip arrangement, wrapped in carbon fibre. It sets the tone for the rest of the exterior package, also relying on the dark weave.

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That includes its front lip, its front blades, front grill vents, rear spoiler and rear skirt. It has tricky “height adjustable suspension springs”, hunkering the RS4+ down on ABT 20-inch wheels. A unique anti-roll bar promises to optimise the changes.

2018 Audi RS4 review

The modifications then continue inside with unique badges, leather treatment, buttons and sills. Even its entrance lights now cast the RS4+ logo on to your feet.

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ABT says it put the package together because demand for preceeding RS4-R pack outstripped supply. It’ll charge you 28,900 € (AU$46K) for the pleasure this time around, and another 2840€ (AU$4.5K) for installation.

You can also tick the box for a host of other modifications at the same time, or even buy a complete car from ABT, that it says are sourced from Europe’s NEDC-friendly period, while delays remain on WLTP-era RS4s.