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Jaguar details the technology behind the I-Pace

Jaguar I-Pace

Ahead of it public debut at the Geneva International Motor Show next month, McLaren has released further information on the Senna. Fitted with a 4.0-liter twin-turbocharged V8 – McLaren’s most powerful IC engine ever produced for a road car – the limited release hypercar will develop 800ps and 800Nm.

Toyota details its new Dynamic Force engine

Megane R.S Video

The Japanese OEM has revealed its all-new powertrain system which is set to be installed in 80% of Toyota vehicles by 2023. Based on the Toyota New Global Architecture, the technology will feature a new continuously variable transmission (CVT), a 6-speed manual transmission and a 2.0-liter hybridized engine unit.

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As OEMs continue to announce plans to end production of diesel engines, Mercedes-Benz has unveiled its new diesel PHEV C-Class at the Geneva Motor Show. Will this powertrain development give TDI a new lease of life? 


Mercedes-AMG G 63 gets 4.0-liter biturbo engine

German OEM Mercedes-AMG has introduced its revamped G class with a new V8 biturbo engine. As the company continues the engine downsizing trend, the new powerplant replaces the 5.5-liter V8 biturbo from the previous iteration.

The G 63 generates 593ps and delivers a maximum torque of 850Nm, this is available across a rev range between 2,500 and 3,500rpm. This all means zero to 100 km/h in 4.5 seconds and limited maximum speed of 220km/h, or 240km/h with the AMG Driver‘s package.

This is thanks to two twin-scroll turbochargers that are inside the cylinder V, meaning a compact engine design, spontaneous response and optimal airflow to the near-engine catalysts.

The turbocharger housing is divided into two parallel flow channels. Combined with two separate exhaust ducts in the exhaust manifold, this makes it possible to control the exhaust gases on the turbine wheel separately.

The exhaust gas from the first and fourth cylinders of the cylinder bank is fed into one duct, then from the second and third cylinders to the other duct.

The aim is to prevent the individual cylinders from having mutually adverse effects on the gas cycle. This reduces the exhaust gas back pressure and improves gas exchange. The results are increased output by virtue of improved cylinder charging with fresh mixture, more torque at low revs and fast response times.

Spray-guided direct petrol injection with piezo injectors, the all-aluminum crankcase, the four-valve per cylinder design with camshaft adjustment, air-water intercooling, alternator management, the Eco start/stop function and the gliding mode have all been retained from the previous model.

Developed with efficiency in mind, the 4.0-liter motor features AMG’s Cylinder Management cylinder deactivation system. In the partial-load range, cylinders two, three, five and eight are deactivated. This means combined fuel consumption of 13.2 l/100km, and combined CO₂ emissions of 299 g/km.

Written by Sam Petters

14 February 2018


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