page_title: Lexus IS (XE20)
section_title: USE20 (2007)
hierarchical_section_title: Lexus IS (XE20) / F marque models / USE20 (2007)
caption_attribution_description: English: 2008–2010 Lexus IS F (USE20R) Sports Luxury sedan. Photographed in Sans Souci, New South Wales, Australia.
context_page_description: The Lexus IS (XE20) is the second generation of the Lexus IS line of compact executive cars. Sold by Lexus since 2005, the line includes multiple V6 gasoline-powered models, in four-door sedan and two-door coupé convertible body styles. Additional sedan models also feature inline-four diesel powertrains, and an F marque version, the IS F, features a V8 engine. A pre-production car of the second generation IS model was first shown at the 2005 Geneva Auto Show, with the production version debuting at the 2005 New York Auto Show. The second generation was only available as a sedan until the two-door coupé convertible variants debuted in 2008.
  The IS is built on a shortened version of the rear-wheel drive midsize platform introduced for the third generation Lexus GS, and also used on the Japanese-market Toyota Crown and Toyota Mark X. The chief engineer of the second generation IS was Suguya Fukusato, a rally driver. The second generation IS sedans were sold until 2013, when the third generation debuted; however the coupé convertible model continued to be sold through 2014.
context_section_description: In early 2004, just after the final XE20 design had been frozen for production, Lexus engineer Yukihiko Yaguchi, assembled a small team and on a limited budget began work on a higher performance IS. By the first half of 2005, XE20-body prototype mules with the 4.6L 1UR-FE V8 were spotted testing on the Nürburgring. These prototypes were nicknamed "IS 460" by the media. In late 
  2005, test mules were also spotted on the Nürburgring that were made using body panels from Toyota Crown Royals that were shortened by cutting out sections of the roof and rear doors. The winning exterior design proposal by Hiroshi Okamato (supervised by chief IS designer Kengo Matsumoto), was finalized in 2005.
  
  On 6 December 2006, Lexus officially confirmed the existence of the vehicle which they called IS F in the press release. At the North American International Auto Show on 8 January 2007, the new IS F sedan was debuted to the public along with the LF-A supercar concept. Images were leaked a couple of hours before the official announcement. At its press debut, Lexus revealed that a separate "skunk works" team designed the IS F in a manner distinct from typical Lexus engineering efforts. The chief engineer of the IS F, Yukihiko Yaguchi, previously worked on the Toyota Supra. Much of the IS F's suspension tuning took place at Fuji Speedway in Japan.
  The IS F vehicle body was lowered by 1 cm (0.5 inches) compared to the standard IS. The hood features a bulged appearance, with sharper curve than the standard IS, due to the added space needed to contain the 5.0 L V8 engine. The drag coefficient is 0.30 Cd. The exterior also features a wire-mesh grille, changed side fenders and skirts, along with side air vents. One noticeable element of the IS F design were its faux quad exhaust tailpipes consisting of two vertically stacked exhaust tips on each side that did not directly connect to the actual exhaust pipes ( tips were part of the bumper, rather than the exhaust). The interior features a four-passenger cabin with braided aluminum panels, steering wheel paddle shifters, and F marque emblems. The IS F also features different seating, with bucket seats in front and rear.
  The Lexus IS F features a 4,969 cc (5.0 L; 303.2 cu in) direct-injected 2UR-GSE V8 producing SAE 310 kW (416 bhp; 421 PS) at 6600 rpm, while peak torque is 371 lb⋅ft (503 N⋅m) at 5200 rpm. The engine redlines at 6800 rpm and also features a two-stage intake system, engine oil and automatic transmission fluid coolers and an oil pump designed for high-speed cornering. Along with both port and direct injection, the engine features VVT-iE camshaft timing, and has a compression ratio of 11.8:1. The 2UR-GSE is derived from the Lexus UR-series V8 engines, which debuted as the 1UR-FSE on the 2007 Lexus LS 460. Of the UR-series V8s, the 2UR-GSE is most closely related to the 2UR-FSE used in the 2008 LS 600h. It features the same bore and stroke dimensions (3.70 in x 3.52). However, extensive modifications carried out by the IS F engineering team in conjunction with Yamaha's Formula One (F1) engine program resulted in a cast-aluminum intake manifold, new cylinder heads, and titanium intake valves. Additionally the engine features a forged crankshaft, connecting rods and cam lobes. At maximum acceleration above 3400 rpm, the secondary intake opens. Compared with the LS 600h's 2UR-FSE (measured alone without its hybrid-electric motors), the IS F 2UR-GSE has more horsepower and torque at higher rpm, and 17 lb·ft less peak torque (see also Lexus IS F performance specifications).
  
  The Lexus IS F features an 8-speed Sport Direct Shift (SPDS) automatic transmission with sequential shift which can lock-up the torque converter from 2nd through 8th gears (see also: Lexus IS transmission specifications). The SPDS is derived from the unit introduced in the 2007 Lexus LS, which was the first vehicle to carry an 8-speed transmission. The SPDS allows for shifts to occur in 0.1 s (100 ms), compared to 0.05 s (50 ms) of F1 race cars. The wheel-mounted paddle shifters allow for gear shifting while steering, an
caption: Lexus IS F (USE20; Australia)
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