Showing posts with label Hybrid. Show all posts
Showing posts with label Hybrid. Show all posts

Monday, September 12, 2011

BMW i8 Concept





The sportiest member of the i series models combines the modified electric drive system from the i3 Concept, but this time fitted over its front axle instead of the rear, with a high-performance, 1.5-liter turbocharged three-cylinder gasoline engine (in place of the Vision ED's diesel unit) developing 220HP (164kW) and 300 Nm (221 lb.ft) at the rear.


The gasoline unit drives the rear wheels through a dual clutch transmission, while the electric motor uses a twin-speed transmission to motivate the front wheels.


Working in tandem, the two drive systems produce a combined output of 349-horses and 550Nm (405.6 lb.ft) of peak torque offering coupe model a 0-100km/h (62mph) acceleration time of just 4.6 seconds and an electronically governed top speed of 250km/h (155mph).


At the same time, BMW says the i8 returns an impressive combined fuel economy in the European cycle of 2.7 liters per 100km (approx. 87mpg US or 104mpg UK).


The i8's electric motor is fed by a large lithium-ion battery, which can be fully charged from a domestic power supply in 1 hour and 45 minutes, offering a pure electric driving range of up to 35 km (approx. 20 miles).


BMW says the positioning of the electric motor and engine over their respective axles result in an optimum 50/50 weight distribution, while the extensive use of lightweight materials including aluminum on the chassis and CFRP (carbonfibre reinforced plastic) on the body, help keep the weight down to 1,480kg or 3,262 pounds.


The i8 2+2 seater and measures 4,632mm long, 1,280 mm tall and 1,955 wide. The concept model will make its public debut at the Frankfurt Motor Show.

































Friday, September 9, 2011

Jaguar C-X16 Concept





Built as a true driver's sports car, the strictly two-seat C-X16 is the smallest Jaguar in terms of length since the 1954 XK120. The concept is built around a shortened version of the next generation XK's aluminium chassis structure and it measures 4,445 mm (175-in.) in length, 2,048 mm (80.6-in.) in width and 1,297 mm (51-in.) in height and has a wheelbase measuring 2,622 mm (103.2-in.).

Lurking under its long hood is hybrid powertrain that includes a next-generation 3.0-liter supercharged V6 petrol engine delivering 380-horses (280kW) and 332 lb ft (450 Nm) of torque and an electric motor generator integrated into the eight-speed automatic gearbox that transfers power to the rear wheels.

The electric motor draws power from a 1.6kWh battery pack mounted behind the seats that is charged through a brake energy regeneration system. The motor provides and additional 95-horsepower (70 kW) and 173 lb ft (235 Nm) of torque.

A Formula 1 Kinetic Energy Recovery System (KERS)-inspired hybrid boost system with a steering-wheel mounted button allows for on-demand acceleration using the electric motor.

Jaguar says the C-X16 tips the scales at 1,600kg (3,527 lbs) and has a perfect 50-50 weight distribution. According to the company, it is capable of accelerating from 0 to 62 mph (100km/h) in 4.4 seconds and from 50 to 75 mph (80-120km/h) in 2.1 seconds, while reaching a top speed of 186 mph (299km/h).

In addition, the British firm reveals that the C-X16 is able to travel at speeds of up to 50 mph (80km/h) using electric power alone and has CO2 emissions of 165 g/km.

The styling of the C-X16 is the work of Ian Callum. The exterior design mixes styling cues from both the XK (up front) and Jaguar's well received C-X75 hypercar study (at the back) from last year's Paris Auto Show, in a more compact form.

Like the exterior, the interior of the concept looks very close to production sans the trim and dramatic color choices. According to the British automaker, the inspiration for elements of its layout come from aeronautical ergonomics, such as the joystick-style gearlever and banks of toggle switches, which also refer to classic racing Jaguar cars.