When you think of "GT-R", the first thing that comes to mind is the Nissan GT-R and that is for some good reasons. The Nissan GT-R is extremely popular for enthusiasts and gamers alike, however there are other great cars that uses the GT-R name and not just Nissan that uses it. In case you are wondering what does "GT-R" stands for, it stands for "Gran Turismo: Racer".
Mercedes Benz CLK GTR
Photo source :https://imboldn.com/1998-mercedes-benz-amg-clk-gtr/
Let me start with the list with a classic Mercedes racer. Built as a homologation special for the FIA GT championship and to compete with the Mclaren F1 GTR LT (more on McLaren later) and the Porsche 911 GT1. This Mercedes feature a naturally aspirated 7.0 litre V12 making 600 horsepowers and have a curb weight of 2,216 pounds (1,005 kilograms). The engine was actually first put in a McLaren F1 GTR with the BMW V12 being pulled out and the new V12 placed. Then, the car had an accident and Mercedes auctioned it off to a supercar collector who later painted it orange. The AMG V12 would later be used for Pagani and AMG still makes the engine for Pagani and Pagani used it in their Zonda and Huayra supercars. The CLK GTR didn't do well in the first race suffering from brake failures, but in their next race in Silverstone, they finished second. An impressive feet for Mercedes and they continued to win until the season ended in 1999. Since I mentioned that this a homologation special and to qualify for the race, Mercedes needed to built 25 road going cars for the public to buy. At the time, the car cost nearly roughly 1.5 million dollars and just for reference, a Mclaren F1 road car cost 1 million dollars at the time. Nowdays, prices have obviously increased drastically and I don't think anyone can buy one of these things, but Mercedes have recently announced of it successor, the AMG One. Although a hybrid this time around, but it makes over 1000 horsepower and it is co developed with the blessed man himself Lewis Hamilton.
Ford Falcon GT-R spec (Police)
Photo source: https://www.whichcar.com.au/news/ex-highway-patrol-fpv-gt-r-spec-up-for-auction
Nowdays most police cars are either Ford Explorers for America and Vauxhall Astra diesel for the Brits, while New South Wales in Australia have a Ford Falcon GT-R spec that makes 536 horsepower from 5.0 litre V8 thanks to bigger exhuasts and a new fuel injection that the road car doesn't have. I am not sure if Australians want to see if they can outrun it, I mean I sure wouldn't. This police cost more than 100,000 Australian dollars and at the time, this was the most powerful Australian police car until it was beaten by the Holden Commordre HSV GT-S and beaten again by the BMW M5 Competetion spec.
McLaren P1 GTR
Photo source : https://carvaganza.com/berminat-dengan-mclaren-p1-gtr-cukup-bayar-rp-604-miliar/
I can include other limited edition track focused McLarens in this list, like the Senna GTR or the F1 GTR, but I think this is the best McLaren track focused from McLaren. Only 40 GTRs of this vehicle is made and can only be bought if a client has already bought a McLaren P1 and the best thing about the GTR is that it is completely road legal. The GTR still uses a hybrid engine but now it makes 986 horsepower. It can do 0-60 in 2.4 seconds and has a top speed of 225 miles per hour. McLaren also built a special "Long Tail" for a request for a Middle East customer.
BMW M3 GTR
Photo source : https://www.bmwblog.com/2016/03/13/bmw-e46-m3-gtr-limited-model/
As BMW now entered the 21st century and still has a rivalry to the Porsche 911. BMW entered this M3 GT class at the American Le Mans and BMW has a trick up their sleeve, as this M3 is no longer powered by a naturally aspirated straight-six, but instead a naturally aspirated V8. The engine is co-developed alongside the Williams F1 team, who BMW later partnered with to compete with Formula 1. Unfortunately BMW didn't built any road going homologation specials and after they produce 10 homologation special after the 2001 American Le Mans. The rules have changed for the 2002 season and BMW have to make 100 road going special and 1000 engines need to be built and BMW just simply pulled out of competition and the GTR is now a legend as it encouraged BMW to put a V8 in the first and last generation of the M3, the E92 and the popularity grew with gamers as well, thanks to iconic silver and blue M3 GTR in Need For Speed: Most Wanted. The GTR road car is also special as it uses carbon fibre front bumper and carbon spoiler and a carbon rear bumper and it still powered by the naturally aspirated V8 now making 440 horsepower, but it cost 250,000 Euros to buy one new. Back to racing, even though BMW pulled out of the American Le Mans, that doesn't mean they are done with motorsport. They were just getting started. BMW later entered two cars for the 24 hours of Nurburgring and won the 2004 and 2005 season in the hands of Schitzer motorsport and the GTR also competed in the 24 hours of Spa as well.
Nissan GT-R LM
Photo source: https://www.topgear.com.ph/features/feature-articles/nissan-gt-r-skyline-r33-lm-tguk-a2606-20190411
It would be an absolute crime if I pass the legendary Nissan GT-R. With so many generations of Nissan GT-R to choose from, it was a bit difficult for me to pick one and I think this is the one that it is the best. Built as a homologation special for the 24 hours of Le Mans and only one is made and located in Nissan headquarters at Japan. This GT-R is special as it is the only RWD from Nissan as Le Mans won't allow 4WD in their race. Built on the R33 generation, the LM makes 400 horsepower from a twin turbo straight six. The LM has wider fenders to fit wider tires. The GT-R LM actually finished 6th in Le Mans, an astonishing position for a Japanese company.