The Porsche Type 997 (Type Nine-Nine-Seven), also simply called the 997 (Nine-Nine-Seven) is the current version of the 911 sports car built by German manufacturer Porsche in Stuttgart-Zuffenhausen. Production of the Carrera and Carrera S coupés began in early 2005, all-wheel drive Carrera 4 and Carrera 4S versions began shipping in November 2005, Turbo and GT3 derivatives went on sale in late 2006 and the 911 GT2 in 2007. In addition to the coupe and cabriolet versions, Targa versions of the Carrera 4 and Carrera 4S are available, which carry on with the "glass canopy" roof design used on all Targa 911s since the Type 993 Generation 911.
During 2009 Porsche made comprehensive changes to the 997 lineup which included small styling changes, increases in engine displacement across the board, the addition of gasoline direct injection and the introduction of the company's new "PDK" dual clutch transmission as well as other mechanical changes. As a result, the updated 997 models are faster, lighter and more fuel efficient than the outgoing versions and have somewhat better handling. In the case of the 997 Turbo, a comprehensively re-tuned all wheel drive system with an optional "torque vectoring" system was also a part of the upgrades package; in an October 2009 preliminary review, Car and Driver magazine estimated that when equipped with the PDK transmission, the updated Turbo should be capable of going from 0 to 60 miles per hour in three (3.0) seconds flat. As of December 2009, the 911 GT2 was the only variant in the 997 lineup not to have received any changes or upgrades.
The 997 is the most commercially successful 911 of all time, having sold 100,000 units between its introduction in 2005 and July of 2007. It has also received mostly positive reviews from the worldwide motoring press; even British motoring journalist Jeremy Clarkson, a known detractor of Porsche vehicles, noted that the 997 will "make love to your fingertips and stir your soul.
The mid-level Challenger is powered by a 5.7 L (345 cu in) Hemi V8 coupled to a 5-speed automatic transmission or a Tremec TR-6060 6-speed manual transmission. On cars equipped with the automatic transmission, the engine features the Multi-Displacement System and produces 372 brake horsepower (277 kW) (SAE) and 398 lb·ft (540 N·m) torque. With the 6-speed manual transmission, the Multi-Displacement System option is deleted and the engine produces 376 brake horsepower (280 kW) (SAE) and 404 lb·ft (548 N·m) torque. Another feature is the Intelligent Deceleration Fuel Shut-Off (iDFSO) available with the manual and the automatic models, the first to combine both Multi-Displacement system and fuel shut-off. The final drive ratio is 3.06:1 on cars with the automatic transmission, 3.73:1 on cars with the 6-speed manual and 18-inch (460 mm) wheels or 3.92:1 with the 6-speed manual and optional 20-inch (510 mm) wheels. Also available on R/T is the "Track Pak" option group, which includes the Tremec manual transmission, a limited slip differential and self-leveling rear shock absorbers. During the end of the 2010 model year, Dodge released the special edition "Mopar '10" Challenger R/T. The Mopar '10 featured a myriad of Mopar aftermarket upgrades straight from the factory including a Mopar cold air intake, hurst pistol grip shifter, custom Katzkin leather interiors and R/T Classic wheels that are painted black as opposed to the standard chrome. All Mopar '10s had metallic black paint to go along with a choice of three different colors for exterior striping (blue,red, or silver)
The Shelby Mustang is a high performance variant of the Ford Mustang built from 1965 through 1970. Following the introduction of the Fifth-generation Ford Mustang the Shelby nameplate was revived in 2007 for new high performance versions of the Mustang. or the 2010 model year, the Shelby Mustang GT500 was redesigned along with the base Ford Mustang. As with the 2007-09 GT500, the 2010 includes unique front and rear fascias, hood with functional vents and unique rear spoiler. The rear spoiler includes a functional Gurney flap. Along with new exterior colors, customers have the option of extending the exterior stripes onto the seats. The 5.4 L engine's power output was increased to 540 horsepower (403 kW) and 510 lb·ft (690 N·m) of torque with the addition of a cold air intake similar to the 08/09 GT500KR and includes a knock sensor to protect the engine if lower octane fuel is used. The 2010 GT500's fuel efficiency increased by 2 miles per gallon. SVT re-tuned the coupe's suspension and worked with Goodyear on 19" tires with new construction, compound and tread pattern. The coupe's 19" wheels are forged for a reduction in unsprung weight. The convertible retained the 18" wheels offered on the 2007-09 GT500.
The Mazda RX-7 is a sports car by the Japanese automaker Mazda. It was produced from 1978 to 2002. The original RX-7 featured a 1146 cc twin-rotor Wankel rotary engine and a sporty front-midship, rear-wheel drive layout. The RX-7 was a direct replacement for the RX-3 (both were sold in Japan as the Savanna) and subsequently replaced all other Mazda rotary cars with the exception of the Cosmo.
The original RX-7 was a sports coupé. The compact and lightweight Wankel engine (rotary engine) is situated slightly behind the front axle, a configuration marketed by Mazda as "front mid-engine". It was offered as a two-seat coupé, with optional "occasional" rear seats in Japan, Australia, the United States, and other parts of the world. These rear seats were initially marketed as a dealer-installed option for the North American markets.
The RX-7 made Car and Driver magazine's Ten Best list five times. In total, 811,634 RX-7s were produced.
