The currentMercedes-AMG GT product line-up comprises a pair ofmodels, but these spy shots suggestthat an even hotter version is on the way.

Image credit: S.B. Medien/S. Baldauf

The Mercedes-AMG GT is a pukkadriving machine and has proved itselfa natural rival to the all-time favourite sportscar:the Porsche 911. We appreciate how much effort the Affalterbach-based Mercedes-AMG division put into the GT; the GTS model isa joy to drive. Powered by the 4.0-litre biturbo V8 engine, the Mercedes-AMG GT is available in two states of tune. The GT produces340kW and 600Nm, whilethe AMG GTS developspeakoutputs of375kW and 650Nm. Both versions soundnothing short of gloriousat idle and full chat.

Now these spy shots indicate a more powerful AMG GT model is on theway andwe expect the production version will beunveiled later this year. Rumours about the name are rife, but "Mercedes-AMG GT R" seems to be the most popular. We're not sure how Nissan will respond to the GT R nomenclature if it does become the official name, but we'll wait and see.

These photos indicatethatthe "GT R" has a revised front end (ostensiblyto allow more airflow into that upgradedengine) and the back endof the car features a fixed aerodynamicwing (for optimal rear downforce) thatdoes not seemtoo dissimilar to the itemcreatedfor the Edition One. More importantly, therear diffuser looks like something that would not be out of place ona DTM racer. This leads us to believe this will bea track-focused AMG GT in the same vein as the Black Series, perhaps it will be a road-going version of the outlandish GT3 race car?

With the currentpower output of the GT S sittingat 375kW, we're expecting theupcoming,mostperformance-orientated Mercedes-AMG GT to have at least 425kW from a tuned version of the biturbo 4.0-litre V8 engine. AMG has already hinted that the AMG version of the all-new E-Class will feature well over 400kW. You can read about that here.

Performance will be, in a word, rapid.Expect the "GT R" to complete thezero to 100kph sprint in less than 3.5 seconds, which will put it the Mercedes-AMG's performance inthe ballpark ofestablished supercars. Will the"GT R" featureall-wheel drive?Purists will suggest it would ruin the GT's driver-oriented focus, but if it doesn't, it could be quite a handful atthe limit…

Read our review of the Mercedes-AMG GT S here.