If it's the real deal, then it appears that Peugeot's designers have toned down the styling a little compared to the near-production concept model, called the "5 by Peugeot", that was showcased in Geneva earlier this year (see here).
The automaker describes the 508 concept car as "another indication of the changing face of Peugeot" and as "providing an insight into the marque's future ambitions in the large luxury vehicle segment."
From what we understand, the production 508 will replace both the VW Passat-fighting 407 and the unsuccessful Audi A6-sized 607 sedan. This is also suggested by the concept model's exterior dimensions which at 4,860mm long, is 42mm shorter than the 607 but 168mm longer than the 407 sedan.
Peugeot is enhancing its 407 Coupe model lineup for the 2010MY with the introduction of a new pair of diesel engines that have been developed in cooperation with Ford. Leading the way is the new 3.0-liter V6 HDi diesel that was recently launched on the Citroen C5 and C6 models. The new unit that replaces the outgoing 2.7-liter V6 HDi generates 240HP at 3,800 rpm and a maximum torque of 450 Nm from 1,600 rpm to 3,600 rpm. 
Surprisingly, it's the most powerful engine ever to be used on a production Peugeot. Equipped with a particle emissions filter (PEF) and compliant to Euro 5 standards, the V6 diesel that is linked to a six-speed sequential automatic gearbox launches the four-seater coupe from 0 to 100km/h (62mph) in 7.7 seconds and on to a top speed of 240km/h or 149 mph.
Even though power is increased by 18 percent over the 2.7-liter V7 HDi, Peugeot claims a 15 percent reduction in fuel consumption announcing a combined figure of 7.2 lt/100km (32.7 mpg US or 39.2 mpg UK) with CO2 emissions of 189g/km instead of 225g/km on the previous model.
The second new diesel engine for 407 Coupe is the 2.0-liter four-cylinder HDi that is coupled to a 6-speed manual gearbox and develops an output of 163HP and 340Nm of torque compared to 136HP and 320Nm of the previous 2.0L diesel. With this powertrain, the 407 Coupe accelerates from standstill to 100km/h (62mph) in 9.1 seconds and achieves a maximum speed of 220km/h or 137mph.
On average, the 407 Coupe 2.0 HDi consumes 5.2 liters of diesel per 100 km which comes to around 45.2 mpg US or 54.3 mpg UK.
For the 2010MY range, all 407 Coupe models benefit from newly designed door mirrors, chrome trimming on the upper section of the side windows and all-new navigation system.
These are the latest speculative renderings of Peugeot's 407 mid-size sedan replacement that is due to arrive in European showrooms sometime during the fourth quarter of 2010. The crew over at French car magazine L'Auto Journal told us that the computer generated images of the Peugeot 408 are based on inside information. As is always the case with these kind of stories, only time will tell how close the renderings are to reality. 
What we do know for certain is that underneath the sheetmetal, the Peugeot 408 sedan will get the same platform and much of the mechanical hardware found in the well accepted Citroen C5.
Expect to see Peugeot's Ford Mondeo and Opel Insignia challenger to be offered with a wide choice of petrol and diesel engines, ranging from a 1.8-litre 127-horsepower petrol unit to the new 3.0-liter HDi V6 diesel that produces a healthy 240-horsepower.
Photos: Autojournal
We are still about a year away from the presentation of the 407's successor, but a member of the Peugeot-Forum seems to have scooped a totally undisguised prototype of the French automaker's new 408 sedan in a parking lot or a garage of some sort. The fuzzy pictures hint at a more aggressive and sportier design language for the 408 that will share its platform and engine line-up with the also new Citroen C5. Follow the jump for a few more shots.
Via: Forum-Peugeot
Even though the current Peugeot 407 isn't due for replacement until 2010, French car magazine L'Auto Journal has come up with a new set of renderings of the mid-size model's successor that will almost certainly be called 408. We must admit that, rabbit-tooth grille aside, the 408 shown in these scans looks pretty sharp. And why shouldn't it as the artist apparently used the Suzuki Kizashi 3 sport sedan concept that made a splash at last April's New York Auto Show as a canvas for the 408... -ContinuedBut come to think of it, after seeing that the Peugeot Kizashi looks quite good on paper, we'd like to propose an idea: since Suzuki seems to have outright diluted the Kizashi's styling on the forthcoming production version (click here for details) how about if Peugeot took the original concept and applied a little bit of magic to create the 408?
Via: Forum Peugeot
The 2009 Peugeot 407 will arrive in 407 range ‘on-the-road’ prices
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| 407 HDi 110FAP S | £17,295 |
| 407 HDi 140FAP S | £18,295 |
| 407 HDi 110FAP SR | £18,295 |
| 407 HDi 140FAP SR | £19,295 |
| 407 HDi 110FAP SE | £19,295 |
| 407 HDi 140FAP SE | £20,295 |
| 407 HDi 136FAP Automatic SE | £21,295 |
| 407 HDi 170FAP GT | £23,295 |
| 407 HDi V6 FAP GT | £25,295 |
New Exterior Colours
Model Range - 407 Saloon / SW
Standard specification by trim level.
The standard specification of the ‘S’ model – key features include:
New SR
Added standard equipment over the ‘S’ model:
SE
Added standard equipment over the ‘S’ model:
GT
Added standard equipment over the ‘SE’ model:
Rather than go through a full-size redesign, Peugeot preferred a light update for its 407 The only mechanical changes concern the updated 2.0-litre HDi engine which now 138Hp (103Kw), an increase of 4Hp or 3 kW. It also benefits from a fuel consumption of 5.6 litres/100km (42MPG) and CO2 emissions reduced to 150 g/km. Sales are expected to start in
In its latest issue, French car magazine “Autoplus” is attempting to give us a preview of the forthcoming Peugeot 408 mid-size sedan that will replace the current generation 407. What looks to be more of a facelift of the 407 than an all-new model, the artist’s take on the 408 isn’t exactly promising especially in concern of the front end with the elevated grille that seems totally out of place. -Continued
Taking its name from the famous luxury hotel in Las Vegas –ok, we’re just kidding, the new Peugeot 407 Coupé Bellagio is a new derivative in the mid-size coupe’s UK range. Exclusively available in Flamenco Red or the new Nera Black metallic, the “Bellagio” is equipped with Peugeot’s no-frills 2.0-litre HDi 136 HP diesel engine. -ContinuedStandard equipment levels exceed the ‘Sport’ model with a RT4 Multi Media System (that includes Colour Satellite Navigation (with European mapping), TMC (Traffic management information) audible GSM phone (with inbuilt voice activated hands free controls) & MP3 30GB hard drive for mapping and music storage function), 18” Galaxy alloy wheels (HDi 136 Sport models ordinarily take 17”) and twin chromed exhaust pipes. Prtices in the
