Replacing the naturally aspirated engine in the Carrera and Carrera S with
a smaller turbocharged unit might improve efficiency, but it unfortunately removes some of the theatre of revving out a spine - tingling engine to its limit.
Unlike many rivals, Mazda employs a «right sizing» policy for its engines rather than «downsizing» - the company believes that greater efficiency and performance will come from matching a car with a suitably - sized engine, rather than trying to squeeze more performance from
a smaller turbocharged unit.
Not exact matches
The selection of TFSI
turbocharged petrol engines are relatively smooth, but it's worth noting that the
smallest 1.0 - litre
unit, featuring just three cylinders, only puts out 113bhp.
Power comes from a 245 - hp 2.0 - liter
turbocharged unit likely similar to the one across BMW's lineup of
smaller vehicles, combined with a 95 - hp electric motor (25 hp more than the Frankfurt version had), and a lithium - ion battery mounted beneath the cargo area.
Both petrol engines are
turbocharged three - cylinder
units — the
smallest is Ford's 1 - litre Ecoboost in 84, 99 and 123bhp forms.
The
turbocharged unit revs sweetly, without suffering the pauses and surges that can spoil some forced induction
small capactiy
units.
In addition to this, the likelihood of it being the new
turbocharged unit from the current 911 seems
small, and a process of elimination leaves us at the likely conclusion of the next GT4 featuring the scintillating 4 - litre flat - six, as used in the current 911 GT3.
The
turbocharged unit continues to use pre-chamber ignition, whereby a
small amount of fuel is ignited before the main engine chamber in order to achieve more uniform combustion, but Renault is yet to adopt the split turbo setup pioneered by rival Mercedes.
Under the hood we expect to see a downsizing trend, the 2.0 - liter 200 - horsepower engine being replaced with a
turbocharged unit with a
smaller displacement such as the 1.8 - liter turbo engine.
This new engine is better thanks to it being a
turbocharged unit and while it may measure in with a
smaller capacity at just 1.5 - liters, the turbocharger means the power is good and on par with the larger
unit but lighter when it comes to consumption.
Eco-Turbo engines follow the downsizing principle —
turbocharged units with relatively
small cylinder volumes — and successively replace
units with larger displacements.
Ford had previewed the
small EcoBoost
turbocharged gasoline direct injection
unit, and had confirmed it for production, at Auto China 2010 in Beijing....
Hopefully it doesn't come to this, but if and when this engine gets replaced by a
smaller,
turbocharged unit, I'll probably be among those pining for the classic, naturally - aspirated VQ that these modern Zs have become known for.
The
smaller displacement
unit is expected to generate 285 horsepower while the larger engine might produce 360 horsepower, with a
turbocharged unit delivering as many as 400 horsepower.
Of course, being the
smallest engine in the Lexus GS range, the 2.0 - liter
turbocharged gasoline
unit is also one of the most efficient in the line - up, with the claimed economy figures of 22mpg in the city and 33mpg on the highway making the car in this guise one of the more efficient sedans in this class.
Normally, mid-sized executive vehicles with larger engines aren't usually that efficient — and especially in comparison with the latest crop of cars with
smaller,
turbocharged units.
First introduced in the 2009 CC, the EA888 continued Volkswagen's move toward
smaller,
turbocharged engines that offer the fuel economy benefits of downsizing with the power of a larger - displacement
unit.
Of course, we want to know what the engine is like and the T - Cross Breeze concept gets a
small 1.0 - litre
turbocharged unit capable of churning out 110bhp.
With the N52 naturally aspirated engine and this even - newer N54
turbocharged unit, BMW is announcing to the world its approach to high performance: Instead of ever - larger engines, BMW will achieve its performance goals with
smaller, lighter, more efficient and cleaner - running engines.
Both the four and six - cylinder diesels featured in various forms in the old model, while the four - cylinder
turbocharged petrol
units debuted in the
smaller 3 Series.
Whereas comparable cars have experimented with
smaller units and
turbocharging, this seven - seater mid-sized SUV is only available with one old school engine: a 3.5 - liter six - cylinder gasoline setup that's devoid of the turbochargers that are slowly starting to pop up on larger SUVs and flatbed trucks.