A breakthrough in the management of diesel emissions has been announced today, enabling diesel cars to undercut future limits for nitrogen oxide (NOx) by almost 90 per cent.
Cars must currently emit no more than 168mg/km (milligrams per kilometre) of NOx and, in 2020, that limit will reduce to 120mg/km in real-world driving tests, and 80mg/km in lab assessments.
New Bosch tech drastically cuts diesel NOx emissions and allows a diesel VW Golf to emit just 13mg/km of NOx in mixed driving conditions, measured using the latest RDE paradigms.
The technology works by managing exhaust gas re-circulation and using optimised turbochargers. It is effective as soon as a car is started and works at all engine speeds, allowing it to operate effectively both when engines are cold, and during urban driving. The system is also effective when drivers accelerate quickly.
At the New York International Auto Show, Nissan revealed the 2019 Altima. The sixth-generation of the best-selling mid-size sedan features two new powerplants, including the advanced variable compression turbo engine first introduced in the Infinit QX50.
Variable Compression Turbo engine
Replacing the previous-generation Altima’s 3.5-litre V6 engine is the world’s first production-ready variable compression turbo inline 4-cylinder —which generates the performance of some V6 gasoline engines but with 4-cylinder level fuel economy.
Designated as the VC-Turbo, the new technology continuously transforms the engine characteristics, providing both dynamic and efficient performance.
The Altima also features the first available Intelligent All-Wheel Drive in a Nissan sedan in the US; and advanced Nissan Intelligent Mobility features, including ProPILOT Assist.
Is Porsche bringing diesel back? Just because Porsche is pumping billions of dollars into its electric programs doesn’t mean the company has any intention of abandoning diesel engines, contradicting earlier statements.
Porsche’s Chairman of the Executive Board, Oliver Blume, says the company has declared it is 100% committed to keeping the internal combustion engine (ICE) alive because it will remain an integral part of the industry for the foreseeable future. Blume then emphasised that Porsche considers the demand for diesel engines to be very much alive.
“Porsche does not develop or manufacture its own diesel engines, and there are no plans to change that in the future,” said Blume. “All the same, there’s no reason to just suddenly abandon diesel.”
Porsche’s commitment to diesel engines is for the same reason its rivals are equally addicted; diesel engines generally produce less CO2 emissions than gasoline ones, which is important to achieving mandated CO2 emission target.
The new Audi S5 Coupe turns to turbo power, the German manufacturer having selected a 3.0 litre turbocharged V6 engine to power the new model.
It replaces the 3.0 litre supercharged V6 from the old S5, and making 354 hp and 369 lb-ft of torque, this new Audi S5 makes 21 more horsepower than the outgoing car and 44 lb-ft more torque.
While that doesn’t sound like a lot, it feels like a lot more on the road. This is because the new turbocharged engine makes its peak torque at 1,370 rpm, while the older supercharged engine needed 2,900 revs to do so.
So while the new S5 has a touch of lag, its torque comes on like a sledgehammer immediately after and it pulls hard through the rev range, bringing up 0-60 mph in just 4.4 seconds.
Paired to that engine is an eight-speed ZF-sourced automatic and it works perfectly. Sure, a dual-clutch might be snappier and a bit more exciting but the ZF eight-speed is a delight, with smooth, rapid shifts in manual-mode and the ability to disappear and softly shrug off gear changes in auto-mode.
Infiniti is to bring an F1-style hybrid turbo set up to the road. It’s expected to reveal its production-ready, performance hybrid Q60 Black S at this year’s Paris motor show in October, but it won’t be on sale until at least 2020.
The 500hp (370kW) Black S model will tap into the company’s collaboration with the Renault Sport Formula 1 team. A twin-turbo V6 engine will be paired with an energy recovery system (ERS) that re-deploys captured energy to augment power and torque.
The company claims it will be the first accessible road car using up-to-date F1 tech, given the Mercedes-AMG Project One’s prohibitive price.