Spoiler Alert: It's A 540bhp Jaguar XFR-S

Thought fast, blue, four-door saloons with silly rear wings died with the Subaru Impreza? Or did you watch Adnan rocking out in the Jaguar XKR-S and wish for something you could fit four mates into before you went for a drift? As you may have guessed, you're in for an early Christmas present...

The Jaguar XFR-S is nothing if not predictable. The original 503bhp XFR is nuked in the power stakes by the 552bhp BMW M5, 542bhp Porsche Panamera Turbo S, and 549bhp Mercedes E63 AMG. Meanwhile, Jaguar has a supercharged V8 in its £100k XKR-S coupe. It doesn't take a Big Bang Theory genius to work out what happens next.

Power in the XFR-S is up to a healthy 542bhp, and torque is now over 500lb ft. Now you can hit 62mph in 4.4sec, laughing at poorer people in regular XFRs as they lag behind by 0.3 of a second. Top speed is still limited, but to 186mph instead of 150mph. Wave some money at a mate who's handy with a laptop and you'll be set free and good for nearly 200mph in no time.

As you can see in the pictures, the Jag is still very rear-wheel drive, and will spin up those tasty new 20-inch rims, no sweat. The rest of the makeover has been pretty controversial with the sort of old men that Jaguar is trying to move away from, but we reckon it's still a more subtle way of carrying around well over 500bhp, compared to say, a Gallardo or Bentley Conti.

If you're still not convinced by the bright blue paint, carbon detailing, red brake callipers, and of course the XXXL rear wing with a side of large grilles and diffuser, then spec it in grey or black, on silver wheels, de-badged, and see there's a few quid waved at the salesman to swap that window-blocking rear spoiler for a little boot lip instead. Q-car, anyone?

The aero upgrades aren't just for show - they cut lift at high speed by SIXTY-EIGHT PERCENT. Seriously, what's a normal XFR then? A bloody biplane?

Under the butch, come-at-me-bro looks, there's stiffer springs using know-how from the gorgeous F-type, an extra driving mode called 'Track DCS' which should basically be renamed 'Hoon button' and a louder exhaust. Which is funny, given that the XFR-S has stop start, so you'll be causing a lot of skipped heartbeats in city traffic. You poser, you.

We want to hear your comments on the XFR-S. Too over-the-top? Not powerful enough? Would you have one over an M5? And in case you're clutching a lottery ticket ahead of a midweek draw, consider the XFR-S is £15,000 more than an XFR and £7000 more than an M5 at a fiver under £80k.

Everyone's got a supersaloon either old or new in their dream 10 car garage. Is the XFR-S yours?

Here's a cheeky video, which might help make your decision:

NB: noticed how many slidey, smokey press shots Jag have sent over of the XFR-S? Yeah, us too...