Here we have yet another fast Audi, but what is it that makes this rapid limousine so special?
Next shout 'READY, STEADY, GO', plant your foot to the floor and begin counting the seconds: 'one, two, three, three-and-a-bit', and boom - that’s 62mph, right there.
To be scientific about it, the exact time is 3.8sec, which ladies and gents, makes it the fastest-accelerating limo you can buy.
We once described the standard S8’s potency in the realms of ‘lunacy’, for it’s no sloth - not with 513bhp, which is available for those who feel the Plus's 597bhp is a tad too wild for them. But somehow that wasn’t enough for the chaps at Ingolstadt (or Audi's Neckarsulm plant, where the S8 is built), and I think you have to admire delusion on such an epic scale.
Don’t think they’ve thrown in another piffling 10bhp as a marketing ploy to lever a few extra sovereigns out of perennially late plutocrats; the Plus adds a hefty 84bhp, with peak torque boosted to 516lb ft, or 553lb ft if you count the overboost function.
It’s a feat achieved by re-mapping the engine to increase boost pressure and stretching the rev limiter by 200rpm. To cope with the extra stress there’s been some beefing-up of the internals, including stronger head gaskets and modified exhaust valves.
Fundamentally the drivetrain remains the same. The engine’s mighty output is distributed to all four wheels through an eight-speed Tiptronic automatic gearbox. From there, and under normal circumstances, a central differential sends 40 percent of the drive to the front axle and 60 percent to the rear - where it’s divided once more by an electronic limited-slip diff. But, if needs be, up to 100 percent of the drive can go to the rear.
As the standard S8 has been known to cook its brakes when driven hard, we'd opt for the Dynamic Pack. It includes fade-resisting 19in carbon-ceramic brake discs and swaps the 155mph limiter for one that pegs things at 189mph instead.
The result is brutal acceleration accompanied by a gloriously deep baritone rumble from the quad tailpipes – which for S8 Plus spotters, are painted black instead of the standard car's chrome.