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The Ultima GTR is a sports car manufactured by Ultima Sports Ltd of Hinckley, Leicestershire, England, and described by commentators as a ''supercar''.〔(【引用サイトリンク】 publisher = Society of Automotive Engineers )〕 The car was available both in kit form and as a "turnkey" (i.e. assembled by the factory) vehicle up until early 2015, when it was replaced by the Ultima Evolution. The design is mid engined, rear wheel drive layout, with a tubular steel space frame chassis and GRP bodywork. A convertible version called the Ultima Can-Am was also produced. Kit builders were free to source and fit a variety of engines and transmissions but the Chevrolet small block V8 supplied by American Speed mated to either a Porsche or Getrag transaxle was the factory recommended standard, and this configuration was fitted to all turnkey cars. == Performance == Ultima focused their marketing efforts on record-breaking activities using a model equipped with a American Speed engine, called the Ultima GTR640, and subsequently, a engine called the GTR720. As a result, they established the following official, independently verified records〔(【引用サイトリンク】 Ultima smashes world record - again )〕 for a production car equipped with road tyres and exhaust: *Fastest 0– time: 2.6 seconds〔 *Fastest 0– time: 5.3 seconds〔 *Fastest – time: 1.8 seconds〔 *Fastest – 0 mph time: 3.6 seconds〔 *Fastest 0–– 0 mph time: 9.4 seconds〔 *Best performance on a skidpad: 1.176g lateral grip in a circle. *Fastest road car over the 1/4 mile: 9.9 seconds @ Due to its curb weight of ,〔(【引用サイトリンク】 Current GTR Demonstrator )〕 the power-to-weight ratio for the GTR720 is per tonne, which is a better ratio than the Bugatti Veyron, Enzo Ferrari, Ascari A10, Koenigsegg CCX or CCGT, but less than the Koenigsegg CCXR or the Caparo T1. However, the Ultima chassis is rated for engines up to and some of Ultima's customers have fitted engines producing or more,〔(【引用サイトリンク】 Jeff Schwartz's Twin Turbo Ultima GTR )〕 for a power-to-weight ratio of over per tonne, which is approximately twice the power-to-weight ratio of the aforementioned cars and nearly the same as the Caparo T1's (1170 hp/tonne, but this is a "dry" tonnage and the hp/tonne would be reduced once oil, coolant, gasoline, etc. are added, compared to the Ultima figures above which are "wet" weights). The GTR720 was independently timed lapping the Top Gear test track in 1 minute 12.8 seconds, which is at least 1 second faster than all other times listed on the Top Gear television programme's Power Board.〔(【引用サイトリンク】 Top Gear Power Laps )〕〔(【引用サイトリンク】 Top Gear Track, Great Britain )〕 In October 2009 Ultima set another time of 1 minute 9.9 seconds, but this time in a configuration not suitable for use on public highways. Ultima have been keen to point out that this time is faster than those set by both the Ferrari FXX and the Caparo T1; of which neither were deemed to be acceptable road cars by the Top Gear presenters shortly after these times were set. In 2011, Romanian workshop Black Falcon Cars mated an Ultima GTR chassis and a modified Porsche GT3 transmission with a Chevrolet V8 turbocharged by Nelson Racing Engines to achieve on racing fuel and made it fully road legal under the brand name Black Falcon SBC-TT1750.〔(【引用サイトリンク】 Black Falcon Cars )〕 In 2015 the GTR and Can-Am names were retired and replaced by the Ultima Evolution range, which represents a complete reengineering of the package. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ultima GTR」の詳細全文を読む スポンサード リンク
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