Another day, another rumour surrounding the power-freaks at Audi.
This time there are reports that the German firm is considering stuffing a Lamborghini V10 into the A5, presumably just because they can.
The result will be an RS5 with an M3 annihilating 500bhp going through all four wheels.
Audi is said to be moving the RS4 and RS5 apart like two naughty schoolchildren, and giving the RS5 a different, even more ferocious, engine.
Leaving nothing to chance in its forthcoming battle with the M3 coupe, word has it Audi will look to the 5.0 litre Lambo Gallardo V10 engine which has 500 bhp in the small supercar.
This engine has already been boosted to 580 bhp in the soon-to-arrive Audi RS6, albeit with twin turbochargers, prompting some commentators to suggest Audi may have gone too far.
No official details have been launched for the RS5 but expect it to feature pumped-up bodywork like the RS6, with wheel-arches reminiscent of the original ur Quattro.