雷克萨斯在SEMA改装车展发布了世界首款“定制版”LC500。它采用了取自赛车，更突出侵略性的车身，包括外延轮拱，更粗壮侧裙，后尾翼，突出散流器，外观比标准版更锐利。车身侧面配备22英寸HRE轮圈和倍耐力 P Zero Nero轮胎，在轮胎后面是Brembo刹车卡钳，其颜色与轮圈颜色像协调。虽然车厂并未发布内装照片，但雷克萨斯表示，车厢内采用GT3规格内装，配备了防滚架和包裹性更强的Sparco碳纤维座椅。该车最重要的改变是原来搭载的5.0升V8自然进气引擎由Club DSPORT进行了改进，排量提升至5.6升，缸径扩大，输出功率从原来的351千瓦/471马力提升至391千瓦/525马力。雷克萨斯甚至表示，如果换装2UR-GSE引擎，功率可以比原来增加一倍，达到702千瓦/942马力以上。

Modified Lexus LC 500 can handle over 900 hp
Unveiled today at SEMA, the “world’s first customized LC 500” features a slightly more aggressive body taking inspiration from race cars.

With fender flares, beefier side skirts, rear ear wing, and prominent diffusers, the customized LC 500 brings a racy look without ruining the sharpness of the original design. The bold look is enhanced by a fresh set of 22-inch HRE wheels featuring a satin charcoal finish and wrapped in Pirelli P Zero Nero tires. Behind the massive alloys reside Brembo brake calipers color-coordinated with the new wheels.

Photos of the cabin have not been provided just yet, but Lexus says the modified LC 500 has a GT3-spec interior with a safety cage and body-hugging Sparco seats dipped in carbon fiber.

But the most important change has occurred underneath the hood where the naturally-aspirated 5.0-liter V8 of the standard car has been modified by Club DSPORT. Displacement has been bumped to 5.6 liters and the cylinder bore has been enlarged as well to squeeze more power. The stock engine pushes out 471 hp (351 kW), but this stronger version delivers an extra 54 hp (40 kW) for a grand total of 525 hp (391 kW). If that’s not impressive enough, Lexus says the modified engine can actually develop more than double the stock power, so 942+ hp (702+ kW) is technically possible to extract from the 2UR-GSE engine.