725bhp Ford Mustang RTR unleashed

That didn't take long. Ford hasn't quite got round to putting the steering wheel on the right-hand side of the new Mustang and already the tuned specials are hitting the market.

This is the Mustang RTR, the brainchild of drifting champ and rear tyre-hater Vaughn Gittin Jr, and it's packing enough punch to see off anything from the BMW M4 to Ford's muscle car nemesis, the 707bhp Dodge Challenger Hellcat.

Top of the tree is the RTR Mustang GT. Its 5.0-litre supercharged V8 is boosted from a hardly inconsiderable standard 435bhp to an enormous 725bhp in the range-topping RTR ‘Spec 2'.

Other 'Spec 2' trinkets include lower, adjustable suspension, stiffer anti-roll bars and rather handsome ‘snowflake' alloy wheels. No doubt the revised cold-air intake and sports exhaust improve the V8's bark, in an effort to match that butch restyle.

Ah yes, because no tuned Mustang would be complete without the requisite testosterone-leaking bodykit. The RTR gets prominent silver nostrils in its grille, a new splitter, skirt and diffuser combo, and a taller bootlid spoiler lip. Looks tasty, no?

If you want the look but the thought of Lamborghini Aventador-shaming power in a ‘Stang scares you, RTR will sell you a ‘Spec 1' pack which includes all of the visual upgrades without messing with your engine.

Or how's this for a best-of-both-worlds mixture? RTR is also offering tuning packages for the new 2.3-litre four-cylinder Ecoboost turbo engine, which develops 305bhp when bone stock. Or, um, standard.

Hilariously, previous versions of the Mustang RTR were available through official Ford dealers, though of course it was a US-only boon. However, with the new Mustang officially heading for UK showrooms in 2015, RTR has announced its go-faster Mustangs will be available for power-hungry European buyers in due course.