ALFA ROMEO BRERA2.4

Short Description
Has there ever been a more beautiful diesel? Stand wherever you like around it: the Giugiaro-designed, Pininfarinabuilt Alfa Romeo Brera looks absolutely stunning from every angle. Remarkably true, in fact, to the multi-award-winning coupe concept shown to universal acclaim at the 2002 Geneva Motor Show. It looks as if it’s been carved rather than built.

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Sharing an all-new platform with the Alfa 159, albeit with a 175mm shorter wheelbase, the chassis of the new Brera features high double wishbone front suspension with a new, sophisticated, multilink rear configuration. Alfa Romeo was first to market a common rail injection diesel engine with the launch of the 156 in 1997. Continuing the company’s pre-eminence in diesel technology is the 2.4-litre, 5-cylinder, 20-valve powerplant. Maybe a word or two on Alfa MultiJet technology is in order at this juncture – for those of you with a technical bent. With a UniJet engine, a ‘pilot’ injection raises the temperature and pressure inside the cylinder to improve combustion for the main stroke. However, by dividing the main injection into a number of smaller injections, a MultiJet engine affords a fuller, more gradual combustion without altering the amount of fuel used. So, the engine is smoother and quieter, performance is increased, and emissions reduced. MultiJet differs from UniJet in two fundamental areas: the injectors; and the electronic control unit. To facilitate multi-injection, the injectors on the Alfa engine achieve two things. They reduce the time lag between injections from 1500 to just 150 microseconds, and they reduce the minimum quantity of fuel injected from two to less than one cubic mm. At the same time, the control unit modulates injection ’strategy’ continually to adjust changes within three parameters: engine rpm; torque required at any given time by the driver; and the ambient coolant temperatures.
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