Mention a diesel car to the average person and they'll probably envision a boring saloon or hatchback chugging up the outside lane of the motorway. Inside, they'll expect to see a sales rep desperately wondering how he can shin far enough up the greasy pole to avoid driving a car that sounds like a bucket of nails. The average person hasn't quite figured out that diesel cars can be sexy. The Alfa Romeo Brera 2.4 JTDM is, you see, not the sort of car for the average person.

There's nothing average about this car. Almost everything about it is either brilliant or terrible. The styling is fantastic, the rear seat space terrible. The sense of occasion you get when you drop behind the wheel is hugely gratifying, the sense of occasion most owners report at their local Alfa dealer markedly less so. This is that essential paradox, the car you buy with your heart and not your head, made that little bit more sensible. It's now a car that is by no means the financial gamble of Alfas of old but is still a little left field for those of a conservative disposition. These people can get their jollies from Volvo. The Alfa Brera is cut from very different cloth.

The 2.4-litre JTDM at the heart of the diesel version of this car is an ultra-modern MultiJet diesel unit. Here, injection pressure is independent of engine speed and can therefore be varied throughout the rev range, irrespective of the amount of diesel being delivered. This improves combustion, which has significant benefits for both performance and economy. Performance first. The zero to sixty sprint takes 7.9 seconds on the way to 143mph - but that only tells a small part of the story. The pulling power of this engine is just astonishing. This is thanks to a 294Ibft peak torque figure that's greater even than the classic 3.2-litre V6 24v engine can muster. There is also a choice of manual or QTRONIC gearboxes to choose from.

"The Brera diesel is a strange but beguiling mix of contrasting attributes"

Mind you, it's necessary to adopt a distinctly un-Alfa-like driving style to get the most out of the JTD. Instead of searing the engine up to the red line as you would in a JTS petrol model, you have to get used to changing up a lot earlier. The surge of power begins at 1,500rpm and is all over by 4,500rpm. In-between is enough acceleration to take you comfortably into licence-confiscation territory. Of course, you don't get that lovely JTS zing while you're doing it - though the five-cylinder engine's note is much more appealing then that of a conventional diesel. But you don't buy a car like this for aural pleasure.

Alfa reckon that, thanks to their Multijet technology, this Brera is on average 15% more frugal than its immediate rivals - and the figures bear this out. With an average fuel economy of 41.5mpg, this is a car that doesn't penalise you for having fun.

This JTD MultiJet engine completes is a 20-valve 210bhp five-cylinder powerplant featuring variable geometry turbocharging and incorporating a 'for life', maintenance-free particulate trap (DPF) in anticipation of Euro 5 emissions regulations. Alfa Romeo was first to the market with a JTD Common Rail direct injection diesel engine when the Alfa 156 was launched in 1997. This crucial lead in diesel technology wasn't squandered and, in its latest 20 valve MultiJet guise, the powerplant is the most powerful engine in the Alfa Romeo JTD family, with a specific power output of 84 bhp/litre. That translates into some serious overtaking punch. If you test drove a 2.2-litre petrol Brera and found its acceleration a little limp for your tastes, the JTDM model should satisfy. Priced from £26,995, the diesel Brera is £3,600 more expensive than the 2.2-litre petrol counterpart and this may be the sticking point. Unable to pony up that premium, coupe buyers may defect to other marques instead of giving the diesel car a go.

Aftar all, would you just look at the thing? It's stunning. Although it's a shape that undoubtedly works better from some angles than others (the front and rear overhangs can look a little ungainly in profile), it's still a car that oozes desirability. The mark of a decent coupe is that it's impossible to resist sneaking a peek as you drive past a plate glass window and you're similarly unable to refrain from checking the car out as you walk away from it. It's something you won't get in quite the same way if you opt for a diesel rival like a Peugeot 407 Coupe or a BMW 3 Series Coupe. It may well force you to ask some rather uncomfortable questions about your motivations for buying such a vehicle but even the most self-absorbed can dress it up as an effort to beautify their neighbourhood. Let the Brera bring out the altruist in you.

You may have owned Alfas in the past and vowed never again, but the current level of quality control within the company merits an amnesty. Everything feels well screwed together and there's a real; sense of occasion about this cabin that's noticeably absent from most of its rivals. The fascia design is simple and elegant and it's not hard to find a comfortable driving position, the only caveat being the surprisingly high driver's seat position. Taller drivers should make sure they don't specify a Brera with the glass roof. It robs you of a vital inch or so of headroom.

Rear seat space is most generously described as token and it's here that the Alfa may well drop sales to less alluringly-shaped cars. It is, effectively, a two-seater with space to chuck a couple of bags but the upside is that the 300-litre boot is bigger than most direct rivals and usefully proportioned too. This lack of practicality draws the Nissan 350Z into a conceptual rivalry and this car is the 300lb gorilla in the corner when it comes to mid-range coupes. On most objective scorecards, the Alfa can't compete with the Nissan but the Brera shifts the goalposts by doing subjective just so well.

This 2.4 JTDM diesel Brera is a winner on almost all scorecards bar asking price. Despite its astonishingly good looks and punchy engine, this is a lot to pay for a 200bhp car. If you can afford it, buy it for what it can do and what it represents rather than any nominal savings you may make at the pumps or on your tax bill.

TOP 1 BRERA DEALS

The results below show the top BRERA deals on buyacar

	Alfa Romeo Brera 2.4 JTDM [210] SV 3dr Hatchback
	ETR	Mthly £457	Saving £1,259	Price £26,156

typical 9.83% APR

PCP finance quote over 48 months,  10,000 miles pa,  deposit of £1000