An optional petrol/gasoline range extender engine is marketed as REx and is powered by the same Kymco built 647 cc inline two-cylinder engine used in the BMW C650 GT maxi-scooter. The system is intended as an emergency backup to extend range to the next recharging location, and not for long-distance travel. The 647 cc engine as fitted in the i3 REx is derated compared to the engine of the same displacement in the C650 GT; the REx engine develops 34 hp; 34 PS (25 kW) and 41 lb?ft; 5.6 kg?m (55 N?m) at 4,300 RPM, achieving compliance with Euro-6 emissions standards compared to the 59 hp; 60 PS (44 kW) (at 7,500 RPM) and 49 lb?ft; 6.7 kg?m (66 N?m) (at 6,000 RPM) for the engine in the C650 GT, which complies with the less restrictive Euro-4 emissions.
The REx engine operates when battery capacity drops to a pre-specified level, generating electricity to extend the range to about 320 km (200 mi) for the European version.
European models have a 9 litres fuel tank while American models have the same tank though software-limited to a capacity of 7.2 litres. Under EPA five-cycle testing, the i3 REx has a total range of 240 km (150 mi).
The vehicle’s official range is 130 to 160 km (80 to 100 mi) for the 60 Ah battery option under the New European Driving Cycle (NEDC), and up to 200 km (120 mi) in the most efficient driving mode. Under the United States Environmental Protection Agency (EPA) cycle the official range is 130 km (81 mi) with combined fuel economy of 124 miles per gallon gasoline equivalent ?MPGe? (1.90 L/100 km; 149 mpg imp).
In July 2016, BMW released the 2017 model year (MY) BMW i3 94 Ah with an improved 33 kWh battery pack with 50% more capacity than the previous model resulting in an increase of its range to 183 km (114 mi) under the EPA cycle, and 300 km (190 mi) under the NEDC test. The Range Extender (REx) variant also has the same higher capacity battery as the all-electric model, with a corresponding all-electric range increase to 156 km (97 mi) under EPA testing cycle, for a total range of 290 km (180 mi). bentley wallpapers, car wallpaper, mercedes wallpapers, BMW i3 wallpapers, maserati wallpapers
(Mazda RX-8)Motorsport
The RX-8 has been campaigned and used in various racing series by privateers. It has seen a considerable amount of success, the most prominent of which being the 2008 and 2010 24 Hours of Daytona GT-class wins campaigned by SpeedSource Race Engineering. This victory also marks the 23rd endurance race win at Daytona by a Mazda rotary-powered race car. While the cars are powered by the 20B rotary engines, the car is in fact built on a tube frame chassis and not on the production car.
Ryan Eversley won both races of the 2010 SCCA World Challenge Mid-Ohio Grand Prix in the touring car class.
Other racing series include the KONI Challenge Series in the Street Tuner class. In the UK, the RX-8 featured in the Mazda sponsored “Formula Women” series (2004), which involved all women drivers with slightly modified RX-8s, and the RX-8 was also campaigned successfully in the Britcar series endurance races (2005/2006). In Belgium, Mazda are currently sponsoring an RX-8 silhouette racer in the GT series. The car also won the IMSA Continental Tire Sports Car Challenge in 2005. Mazda RX-8 wallpapers#Porsche919 #mercedes #FerrariFF #AstonMartin #AudiRS3
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