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Mercedes-Benz unveils its revamped G-Class

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The all-new G-Class makes its public debut at the Detroit auto show in G550 form. Completely redeveloped and fitted with a 4.0-liter V8 biturbo gasoline engine offering 427ps and 450 lb-ft of torque at 2,000rpm to 4,750rpm, despite near-identical looks to its predecessor plenty has changed for the Mercedes-Benz SUV.


Ford’s F150 pickup gets its first diesel motor

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Developed by the powertrain team behind the 6.7-liter Power Stroke engine for super duty trucks, the all-new 3.0-liter V6 Power Stroke unit promises 250ps, 440 lb-ft of torque, and an anticipated 5175kg of towing capacity.


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In light of Fisker's solid-state battery breakthrough and claims of a one minute charge time, will this electric vehicle technology development kick-start mass BEV uptake? 

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Audi reveals TT quattro sport concept

Audi has revealed its TT quattro sport concept, with the vehicle powered by a four-cylinder 2-liter TFSI engine.
Based on the all-new TT, the all-wheel drive concept vehicle delivers 420ps at 6,700rpm to establish a new benchmark in the 2-liter category. Its specific output is 210ps per liter of displacement - more than 2001's Le Mans R18 racing car, which combined turbocharging with FSI direct injection for the first time in an Audi petrol engine. It also produces 450Nm of torque from 2,400 to 6,300rpm, and at 1,900rpm delivers over 300Nm.
Tipping the scales at 1,344kg, the Audi TT quattro sport concept achieves a power-to-weight ratio of 312.5ps per ton. As a result, the four-cylinder engine can accelerate from 0 t0 100km/h in 3.7 seconds.

According to Audi, the high-performance engine benefits from EA888 technologies such as the Audi valvelift system (AVS) variable valve timing, dual camshaft adjustment, and dual injection system (FSI plus MPI). A wide range of modifications is featured, including special aluminum pistons with integrated cooling channels and an ultra-high-strength forged steel crankshaft.
The cylinder head has been further developed to enable it to contend with the higher loads and increased gas throughput, and the thin-wall cylinder crankcase has been strengthened in view of the higher power output through the use of a high-strength cast alloy. The exhaust-gas turbocharger is also a new development incorporating optimized mixed-flow technology, and produces up to 1.8 bar of charge pressure.

Dr Stefan Knirsch, head of powertrain development at Audi, said: "This high-performance power unit is an impressive demonstration of the power reserves available in our EA888 engine range. In the TT quattro sport concept, it demonstrates its full power potential. The 35 years of experience we've gained in the field of turbocharging are manifested in this engine's unique combination of maximum performance, dynamism, and fuel efficiency." When driving, the turbocharged direct-injection engine revs up to the fuel cut-off at 7,200rpm, transferring its torque to a three-shaft S tronic dual-clutch transmission. The car’s hydraulically actuated, electronically controlled multi-disk clutch is located on the rear axle for optimum weight distribution, and redistributes drive torque between the axles in milliseconds.  

13 March 2014


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