The Honda/Acura NSX has had a good run. The mid-engine supercar developed with input from the legendary Ayrton Senna first hit the market in 1990 and didn't cease production until 2005, giving it one of the longest production runs in the business. But even after Honda stopped selling the NSX, it was still being campaigned in Japan's SuperGT racing series. No more, says Honda, as the 2010 regulations switch exclusively to the use of front-engine, rear-drive chassis, forcing the NSX into retirement after nearly two decades of duty.

Based on the roadgoing supercar, the SuperGT-spec NSX-GT featured a heavily modified chassis that swapped the stock transverse V6 for a 500-horsepower competition-spec engine tuned by Mugen and mounted longitudinally. The car's been driven to three drivers' titles and three teams' championships in the Japanese touring car series.

No word yet on what, if anything, will succeed the NSX – or the Toyota MR-S for that matter – but Japanese automakers dropping out of motorsports like so many flies, we won't be holding our breath.

[Source: Honda via Jon Sibal]