On 6 December 2006, Lexus officially confirmed the existence of a high-performance variant of the second generation Lexus IS which they called Lexus IS F in a press release. The Lexus IS F sedan premiered at the 2007 North American International Auto Show on January 8, 2007 as the launch product of Lexus' F marque lineup of performance-focused vehicles. The vehicle features a 5.0 L direct-injected V8 producing 416 SAE hp (423 PS, 311 kW) at 6,600 rpm, while peak torque is 371 ft·lbf (503 N·m) at 5,200 rpm. The engine also features a two-stage intake system, engine oil and transmission fluid coolers and an oil pump designed for high-speed cornering. Images were leaked a couple of hours before the official announcement.
The specifications upon release are as follows: starting price is $56,000 USD, 5.0L V8 engine, 416 hp (310 kW) at 6,600 rpm, 371 ft·lbf (503 N·m) torque at 5,200 rpm, 0-60 mph (97 km/h) in 4.3 seconds and a 12.385 seconds at 115.010 mph (185.1 km/h) in the 1/4mile, and a top speed of 170 mph (270 km/h) (electronically limited). According to a test by Motor Trend, the IS F recorded a 331 hp (247 kW; 336 PS) and 276 pound-feet (374 N·m) of torque on a DynoJet dynamometer. Typical dyno results with 93 octane are 357+hp and 345+tq.
The debut of the higher performance variant of the IS was preceded by spy photos of prototype testing in Germany and California, along with other disguised Lexus test vehicles. The previous generation Lexus IS 430 prototype vehicle was indicative of future possibilities for the Lexus IS series, including the likelihood that a second generation high-performance Lexus IS model could come equipped with a V8 engine. It was also rumored that there would be a coupe and a convertible version for a 2009 model, as well as a convertible version of the V8-powered IS.
The chief engineer of the second generation Lexus IS was Suguya Fukusato, a rally driver, while the Lexus IS F project was led by Yukihiko Yaguchi, who worked on the Toyota Supra.
The debut of the higher performance variant of the IS was preceded by spy photos of prototype testing in Germany and California, along with other disguised Lexus test vehicles. The previous generation Lexus IS 430 prototype vehicle was indicative of future possibilities for the Lexus IS series, including the likelihood that a second generation high-performance Lexus IS model could come equipped with a V8 engine. It was also rumored that there would be a coupe and a convertible version for a 2009 model, as well as a convertible version of the V8-powered IS.
The chief engineer of the second generation Lexus IS was Suguya Fukusato, a rally driver, while the Lexus IS F project was led by Yukihiko Yaguchi, who worked on the Toyota Supra.
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